HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Chapter 21---Air Conditioning
00
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
10-1
Engine Main Air
Valves
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
C
2
1
(M) (O) One may be inoperative for
pressurized flight provided;
a) Valve is secured closed, and
b) Flight Deck Heat Valve
System is operative.
With engines running, select AUX
1. Verify affected valve
HEAT (F/DK VLV) and confirm that
mechanical indicator arm is
airflow is present.
secured closed.
2. Pull and collar the affected
MAIN AIR VLV circuit breaker.
3. Disconnect electrical
connector from valve, bag,
and stow.
C
2
0
(M) (O) May be inoperative
provided:
a) Both valves are secured
closed,
b) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
c) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
d) Flight is conducted in an
unpressurized configuration,
e) Aircraft is operated at or
below 15,000 feet MSL, and
f) Applicable Oxygen
requirements are established
and complied with.
Reference Table 1, Configure
1. Visually confirm valve
mechanical indicator arms are Aircraft for Unpressurized Flight.
in the closed position.
2. Pull and collar the affected
MAIN AIR VLV circuit breaker.
3. Disconnect electrical
connectors from valves, bag,
and stow.
21 - AIR CONDITIONING
Page 1
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
10-2
Engine Main Air
Valve Position
Indicators
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
C
2
1
(O) One may be inoperative
provided both engine main air
valves are operative.
With engines running and APU
OFF,
1. Sequentially select L & R
Main Air Valves OPEN and
CLOSED.
2. Confirm that airflow is present
with valve OPEN and that flow
stops when valve is closed.
C
2
1
(O) One may be inoperative
provided indicator associated with
the operative main engine air valve
is operative.
With engines running and APU
OFF,
1. Select operative Main Air
Valve OPEN and CLOSED.
2. Confirm that airflow is present
with valve OPEN, associated
indicator illuminates while
valve is OPEN, and that flow
stops when valve is closed.
21 - AIR CONDITIONING
Page 2
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
4. Remarks and Exceptions
C
2
0
(M) (O) May be inoperative
provided:
a) Both valves are secured
closed,
b) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
c) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
d) Flight is conducted in an
unpressurized configuration,
e) Aircraft is operated at or
below 15,000 feet MSL, and
f) Applicable Oxygen
requirements are established
and complied with.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Visually confirm both valve
Reference Table 1, Configure
mechanical indicator arms are Aircraft for Unpressurized Flight.
in the closed position.
2. Pull and collar the affected
MAIN AIR VLV circuit breaker
3. Disconnect electrical
connectors from both valves,
bag, and stow.
21 - AIR CONDITIONING
Page 3
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
4. Remarks and Exceptions
10-3
Refrigeration Unit
System/ Air Cycle
Machine
C
1
0
(O) May be inoperative provided:
a) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
b) Both MAIN AIR VALVES are
selected CLOSED,
c) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
d) Flight is conducted in an
unpressurized configuration,
e) Aircraft is operated at or
below 15,000 feet MSL, and
f) Applicable Oxygen
requirements are established
and complied with.
10-4
Footwarmer and
Windscreen
Demister valve
C
1
0
May be inoperative provided
windscreen heating system is
operative.
10-5
***
Cockpit Ventilation
Hawker (Excluding
aircraft equipped
with Collins Pro
Line 21 Avionics)
C
-
0
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
21 - AIR CONDITIONING
Page 4
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
10-6
Cabin Flood Valve
1)
Two-Way Cabin
Flood Valve (Aircraft
without Cabin Floor
Valves)
C
1
0
2)
Cabin Flood Valve
(Aircraft with Cabin
Floor Valves)
C
1
0
(O) May be inoperative provided
Left Hand (LH) or Right Hand (RH)
Cabin Floor Valve is verified
operative.
With APU AIR ON or MAV open
(engines running)
1. Select Cabin Floor Valve
OPEN, and
2. Confirm airflow from Cabin
Floor Vent.
C
1
0
(O) May be inoperative provided:
a) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
b) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
c) Flight is conducted in an
unpressurized configuration,
d) Aircraft is operated at or
below 15,000 feet MSL, and
e) Applicable Oxygen
requirements are established
and complied with.
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
21 - AIR CONDITIONING
Page 5
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
10-7
Ram Air Shut-Off
Valve
4. Remarks and Exceptions
C
1
0
(M) (O) May be inoperative for
pressurized flight provided:
a) Valve is secured fully closed,
and
b) Dump Valve, or Vent Valve
(Post Mod. 25G726A/C) is
operative.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Locate RAM AIR VALVE
Operate Dump Valve, or Vent Valve
circuit breaker on DA-A Panel. (Post Mod. 25G726A/C) OPEN and
2. Pull and collar the RAM AIR CLOSED.
VLV circuit breaker.
3. Install INOP placard adjacent
to shutoff valve lever.
4. Operate Dump Valve, or Vent
Valve (Post Mod. 25G726A/C)
OPEN and CLOSED.
21 - AIR CONDITIONING
Page 6
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
10-8
***
Rear Baggage
Pannier Heating
System
10-9
Refrigeration Unit
Bypass Valve
(RBV)
10-10 Overhead Air Flow
Distribution Vents
(Punkah Louvers)
4. Remarks and Exceptions
C
1
0
(M) May be inoperative provided:
a) Inlet and outlet valves are
verified closed, and
b) Pannier heating is selected
OFF.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
NOTE
Refer to AMM 21-10-205 page 401.
1. On panel DA-H, identify and
remove F5 fuse.
2. Locate Inlet Shut-off Valve.
• Verify valve is closed by valve
position indicator.
3. Locate Outlet Shut-off Valve.
• Verify valve is closed by valve
position indicator.
4. If either valve position
indicator does not indicate
CLOSED, valve(s) may be
blanked.
• Fabricate blanking plate to
match 25-8VF405-1 gasket
using 0.050” 2024-T3 Clad
aluminum.
• Install plate with two gaskets
between valve and Pannier.
NOTE: Bolt length may need
to be increased.
5. Install INOP placard adjacent
to PANNIER HEAT switch.
Moved to 21-60-7, Revision 5.
D
-
0
21 - AIR CONDITIONING
Page 7
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
10-11 Cabin Floor Valves
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
C
2
1
C
2
0
(O) May be inoperative provided
Cabin Flood Valve is verified
operative.
With APU AIR ON or MAV open
(engines running),
1. Select Cabin Flood Valve
OPEN, and
2. Confirm airflow from Cabin
Flood Vent.
C
2
0
(O) May be inoperative provided:
a) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
b) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
c) Flight is conducted in an
unpressurized configuration,
d) Aircraft is operated at or
below 15,000 feet MSL, and
e) Applicable Oxygen
requirements are established
and complied with.
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
21 - AIR CONDITIONING
Page 8
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
10-12 Cabin Flood Valve
Indicator (Series
750, 800A, 800XP,
850XP and 900XP)
10-13 Cabin Floor Valve
Indicator
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
C
1
0
(O) May be inoperative provided:
a) Cabin Flood Valve is verified
operative, and
b) Cabin Floor Valve Indicator is
verified operative.
1. Confirm Flood Valve control
by cycling open and close,
check audibly for change in
flow.
2. Open and close Floor Valves;
confirm indicator for position
change.
C
1
0
(O) May be inoperative provided:
a) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
b) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
c) Flight is conducted in an
unpressurized configuration,
d) Aircraft is operated at or
below 15,000 feet MSL, and
e) Applicable Oxygen
requirements are established
and complied with.
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
C
1
0
(O) May be inoperative provided:
a) Cabin Floor Valve is verified
operative, and
b) Cabin Flood Valve Indicator is
verified operative.
With either APU or main engine air,
1. Confirm operation of Cabin
Floor Valve.
2. Confirm Flood Valve operation
and indication by listening for
flow change and observing
Flood Valve Indicator.
21 - AIR CONDITIONING
Page 9
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
10-14 Flow Control Valve
(Series 1 Through
800, except 750)
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
C
1
0
(O) May be inoperative provided:
a) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
b) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
c) Flight is conducted in an
unpressurized configuration,
d) Aircraft is operated at or
below 15,000 feet MSL, and
e) Applicable Oxygen
requirements are established
and complied with.
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
C
1
0
(O) May be inoperative provided:
a) Ram Air Valve is verified
operative prior to each
departure,
b) Dump Valve is selected
OPEN,
c) Flight is conducted in an
unpressurized configuration,
d) Aircraft is operated at or
below 15,000 feet MSL, and
e) Applicable Oxygen
requirements are established
and complied with.
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
21 - AIR CONDITIONING
Page 10
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
10-15 High Pressure (HP)
Air Valve (With
TFE-731 Engines
Only)
4. Remarks and Exceptions
C
2
1
(O) One may be inoperative
provided:
a) Affected Main Air Valve is
verified closed,
b) Cockpit auxiliary heating
system verified operative, and
c) Flight is conducted at or below
FL 250.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. With the engines running and
APU off,
• Select Main Air Valve on
affected side OPEN and
CLOSED.
• Confirm airflow is present with
valve OPEN, associated
indicator illuminates while
valve is OPEN, and that flow
stops when valve is closed.
2. With engines running, select
AUX HEAT and confirm that
airflow is present.
3. Conduct flight at or below FL
250.
NOTE
Special attention should be given to
planning low altitude flights.
21 - AIR CONDITIONING
Page 11
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
4. Remarks and Exceptions
C
2
0
(O) May be inoperative provided:
a) Both Main Air Valves are
verified closed,
b) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
c) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
d) Flight is conducted in an
unpressurized configuration,
e) Aircraft is operated at or
below 15,000 feet MSL, and
f) Applicable Oxygen
requirements are established
and complied with.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
21 - AIR CONDITIONING
Page 12
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
4. Remarks and Exceptions
10-16 Pressure
Regulating Shutoff
valve (PRSOV)
(Series 800XP,
850XP, 900XP,
C-29A, and 750)
C
1
0
20-1
Cabin
Recirculating Fan
C
1
0
20-2
Flight Deck Heat
Valve/ Auxiliary
Heating Valve
C
1
0
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
(O) May be inoperative provided:
a) Ram Air Valve is verified
operative prior to each
departure,
b) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
c) RH Main Air Valve remains
CLOSED,
d) Flight is conducted in an
unpressurized configuration,
e) Aircraft is operated at or
below 15,000 feet MSL, and
f) Applicable Oxygen
requirements are established
and complied with.
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
(O) May be inoperative closed
provided flight is conducted at or
below FL 250.
Operate at or below FL250.
NOTE
Special attention should be given to
planning low altitude flights.
20-3
Flight Deck
Recirculating Fan
(s)
C
-
0
20-4
Mixing Valves (TFE
731 Engine Only)
C
2
1
One may be inoperative provided
Main Air Valve is operated LP ON
only.
21 - AIR CONDITIONING
Page 13
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
4. Remarks and Exceptions
C
21-1
Nose
Compartment
Ventilation System
30-1
Cabin Altitude
Warning Light/
Annunciator
2
0
(O) May be inoperative provided:
a) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
b) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
c) Flight is conducted in an
unpressurized configuration,
d) Aircraft is operated at or
below 15,000 feet MSL, and
e) Applicable Oxygen
requirements are established
and complied with.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
Relocated to 34-70-12, revision 5.
C
1
0
(O) May be inoperative provided:
a) Cabin altimeter is operative,
and
b) Cabin altitude aural warning is
operative.
C
1
0
(O) May be inoperative provided
aircraft is operate at or below
10,000 feet MSL.
1. Confirm that cabin altimeter is
operative, and
2. Confirm that cabin altitude
aural warning is operative.
Operate at or below 10,000 feet
MSL.
NOTE
Special attention should be given to
planning low altitude flights.
21 - AIR CONDITIONING
Page 14
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
30-2
Cabin Altitude
Aural Warning
4. Remarks and Exceptions
C
1
0
(O) May be inoperative provided:
1. Cabin altimeter is operative,
and
2. Cabin Altitude Warning
Annunciator / light is
operative.
C
1
0
(O) May be inoperative provided
aircraft is operated at or below
10,000 feet MSL.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Confirm that cabin altimeter is
operative, and
2. Confirm that cabin altitude
Warning Annunciator light is
operative.
Operate at or below 10,000 feet
MSL.
NOTE
Special attention should be given to
planning low altitude flights.
21 - AIR CONDITIONING
Page 15
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
30-3
Automatic Cabin
Pressure
Controller / DCPS
AUTO Mode
4. Remarks and Exceptions
C
1
0
(O) May be inoperative provided:
a) Manual pressure control
system is operative,
b) Cabin altitude, Differential
Pressure and Cabin Rate of
Climb indicators are
operative.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Confirm manual
pressurization control is
operative with cabin door
closed and either engine or
APU air ON:
• Select PRESSN OVRD on
roof panel.
• Select Cabin Alt Control knob
fully counterclockwise.
• Select Pressurization Control
to GROUND TEST position.
• Operate Manual Cabin
Altitude Control knob to
increase and decrease cabin
pressure.
• Return Pressurization Control
to NORMAL and PRESSN
AUTO.
2. Confirm normal operation of
cabin altitude, differential
pressure, and cabin rate of
climb indications.
21 - AIR CONDITIONING
Page 16
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
30-4
Fan Operated
Venturi
(excludes Digital
Cabin
Pressurization
System)
4. Remarks and Exceptions
C
1
0
(O) May be inoperative provided:
a) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
b) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
c) Flight is conducted in an
unpressurized configuration,
d) Aircraft is operated at or
below 15,000 feet MSL, and
e) Applicable Oxygen
requirements are established
and complied with.
C
1
0
(O) May be inoperative provided:
1. Dump Valve is verified
operative, and
2. DUMP VLV is selected OPEN
for all ground operations, and
3. DUMP VLV is selected OPEN
for Takeoff and Landing
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
WARNING
Do not open the Main Entry Door
before the aircraft cabin is
depressurized.
Confirm cabin is depressurized
before Main Entry Door is opened
by either opening Cockpit C-Panel
or selecting DUMP VLV fully OPEN.
21 - AIR CONDITIONING
Page 17
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
30-5
Outflow / Safety
Valves
30-6
Cabin Pressure
Instruments (Triple
Indicator or
Separate
Indicators)
1)
Cabin Altitude
Indicator
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
C
2
0
(O) May be inoperative provided:
a) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
b) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
c) Flight is conducted in an
unpressurized configuration,
d) Aircraft is operated at or
below 15,000 feet MSL, and
e) Applicable Oxygen
requirements are established
and complied with.
C
1
0
(O) May be inoperative provided:
Reference Table 2, Aircraft Altitude
a) Cabin Differential Pressure
Versus Cabin Altitude.
Indicator is operative, and
b) Cabin Rate of Climb Indicator
is operative, and
c) A chart is provided to the flight
crew to convert cabin
differential pressure to cabin
altitude.
OPERATIONAL
PROCEDURES
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
1. Confirm Cabin Differential
Pressure Indicator is
operative.
2. Confirm Cabin Rate of Climb
Indicator is operative, and
3. Use a chart to convert cabin
differential pressure to cabin
altitude.
21 - AIR CONDITIONING
Page 18
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
2)
Cabin Differential
Pressure Indicator
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
C
1
0
(O) May be inoperative provided:
a) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
b) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
c) Flight is conducted in an
unpressurized configuration,
d) Aircraft is operated at or
below 15,000 feet MSL, and
e) Applicable Oxygen
requirements are established
and complied with.
C
1
0
Reference Table 2, Aircraft Altitude
(O) May be inoperative provided:
Versus Cabin Altitude.
1. Cabin Altitude Indicator is
operative, and
2. Cabin Rate of Climb Indicator
is operative, and
3. A chart is provided to the flight
crew to convert cabin altitude
to cabin differential pressure.
OPERATIONAL
PROCEDURES
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
1. Confirm that Cabin Altitude
Indicator is operative.
2. Confirm that Cabin Rate of
Climb Indicator is operative,
and
3. Use a chart to convert cabin
altitude to cabin differential
pressure.
21 - AIR CONDITIONING
Page 19
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
3)
Cabin Rate of Climb
Indicator
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
C
1
0
(O) May be inoperative provided:
a) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
b) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
c) Flight is conducted in an
unpressurized configuration,
d) Aircraft is operated at or
below 15,000 feet MSL, and
e) Applicable Oxygen
requirements are established
and complied with.
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
C
1
0
(O) May be inoperative provided all
remaining cabin pressure
instruments and functions of the
pressurization system are
operative.
Confirm all remaining functions and
instruments of the Cabin
Pressurization System Instruments
are operative.
21 - AIR CONDITIONING
Page 20
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
4. Remarks and Exceptions
C
30-7
Absolute Pressure C
Regulators
(excludes Digital
Cabin
Pressurization
System)
1
2
0
0
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
(O) May be inoperative provided:
a) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
b) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
c) Flight is conducted in an
unpressurized configuration,
d) Aircraft is operated at or
below 15,000 feet MSL, and
e) Applicable Oxygen
requirements are established
and complied with.
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
(O) May be inoperative provided:
a) Ram Air and Dump Valves are
verified operative before the
first flight of the day,
b) DUMP VLV is selected OPEN,
c) Flight is conducted in an
unpressurized configuration,
d) Aircraft is operated at or
below 15,000 feet MSL, and
e) Applicable Oxygen
requirements are established
and complied with.
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
21 - AIR CONDITIONING
Page 21
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
30-8
Air Jet Pump
30-9
Flow Control Valve
50-1
***
Auxiliary Cooling
Pack
60-1
Temperature
Control System
4. Remarks and Exceptions
C
1
0
(O) May be inoperative provided:
a) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
b) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
c) Flight is conducted in an
unpressurized configuration,
d) Aircraft is operated at or
below 15,000 feet MSL, and
e) Applicable Oxygen
requirements are established
and complied with.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
Moved to 21-10-14, revision 5.
C
-
0
(O) May be inoperative provided
cabin ambient temperature remains
suitable for equipment cooling.
Periodically confirm with
passengers that cooling is suitable.
1) Automatic
C
1
0
(O) May be inoperative provided
the manual control system is
operative.
With engines running, confirm that
conditioned air temperature
responds to manual temperature
control changes.
2) Manual
C
1
0
(O) May be inoperative provided
the automatic control system is
operative.
With engines running, confirm that
conditioned air temperature
responds to automatic temperature
control changes.
21 - AIR CONDITIONING
Page 22
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
60-2
Cabin Temperature
Indicator
C
1
0
60-3
Cabin Duct
Temperature
Indicator
C
1
0
60-4
Turbine Unit
Bypass valve
(Series 1 through
800) / Low Limit
Temp Control
Valve (Series 750,
800XP, 850XP &
900XP)
C
1
0
(O) May be inoperative provided:
a) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
b) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
c) Flight is conducted in an
unpressurized configuration,
d) Aircraft is operated at or
below 15,000 feet MSL, and
e) Applicable Oxygen
requirements are established
and complied with.
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
60-5
Cabin / VIP
Temperature
Control Switch
D
-
0
(O) May be inoperative provided
temperature control system is
operative from the cockpit.
With engines running, confirm that
conditioned air temperature
responds to temperature control
changes.
60-6
Cabin Flood
Control Valve /
Flood Flow Valve
Renamed reformatted, and moved
to 21-10-6, revision 5
21 - AIR CONDITIONING
Page 23
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
21 - Air Conditioning
60-7
Refrigeration Unit C
Bypass Valve
(RBV) (Series1
through 800) /
Cabin Temperature
Control Valve
(Series 750, 800XP,
850XP & 900XP)
4. Remarks and Exceptions
1
0
(O) May be inoperative provided:
a) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before first flight of
the day,
b) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
c) Flight is conducted in an
unpressurized configuration,
d) Aircraft is operated at or
below 15,000 feet MSL, and
e) Applicable Oxygen
requirements are established
and complied with.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Reference Table 1, Configure
Aircraft for Unpressurized Flight.
21 - AIR CONDITIONING
Page 24
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Table 1
Configure Aircraft for Unpressurized Flight
21 - Air Conditioning
Chapter
21 Para.
10-1,
10-2,
10-3,
10-6-2,
10-11,
10-12,
10-13,
10-14,
10-15,
10-16,
20-4,
30-3,
30-5,
30-6-1,
30-6-2,
30-6-3,
30-7,
30-8,
60-4, &
60-7
Item
Stated in each
listed paragraph
OPERATIONAL
PROCEDURES
Perform the following steps for unpressurized low-level flight:
1. Prior to the first flight of the day and before engine and APU start, confirm Ram Air and Dump
Valve, or Vent Valve (Post Mod. 25G726A/C) are operative. Ram Air Valve movement can be
heard from Rear Equipment Bay when DUMP VLV, or VENT VALVE (Post Mod. 25G726A/C) is
selected OPEN.
2. Configure the aircraft for unpressurized flight:
•
Select DUMP VLV, or VENT VALVE (Post Mod. 25G726A/C) fully OPEN.
•
F/DK VLV positioned as required.
3. Operate at or below 15,000 feet MSL.
4. Comply with FAR 91.211 or FAR 135.89 and FAR 131.157.
Passenger Oxygen Masks will deploy automatically when the cabin altitude reaches 12,000 feet MSL
+/- 500 feet.
The Passenger Supply Valve may be selected closed to prevent passenger oxygen mask
deployment, provided the aircraft is operated at or below 10,000 feet MSL or the passenger cabin has
no occupants.
NOTE
Special attention should be given to planning low altitude flights.
21 - AIR CONDITIONING
Page 25
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Table 2
Aircraft Altitude Versus Cabin Altitude
Cabin Altitude (feet)
Aircraft
Altitude (feet)
2 Pounds per
square inch
dial (psid)
4 psid
6 psid
8 psid
8.6 psid
41,000
28,875
20,575
14,120
8,785
7,345
40,000
28,250
20,120
13,750
8,470
7,045
35,000
24,980
17,605
11,700
6,725
5,375
30,000
21,410
14,785
9,350
4,705
3,430
25,000
17,625
11,710
6,735
2,525
1,230
20,000
13,650
8,390
3,870
15,000
9,525
4,860
765
21 - AIR CONDITIONING
Page 26
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
22---Auto Flight
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a- 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
22 - AUTO FLIGHT
10-1
Autopilot
System(s)
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
C
-
1
(O) May be inoperative provided
operations do not require dual
autopilot use.
Plan flight to ensure that:
a) Operations do not require dual
autopilot use.
B
-
0
May be inoperative provided
enroute operations and / or
approach minimums do not require
autopilot use.
Plan flight to ensure that:
a) Enroute operations do not
require use of autopilot.
b) Approach minimums do not
require use of autopilot.
NOTE
Any operative autopilot mode may
be used.
NOTE
RVSM is not authorized.
NOTE
Any operative autopilot mode may
be used.
NOTE
RVSM is not authorized.
10-2
Autopilot Control
Yoke Disengage
Switches
C
2
1
(O) One may be inoperative
provided:
a) Autopilot is not used below
1,500 feet AGL, and
b) Approach minimums do not
require the use of the
autopilot.
Disengage autopilot at or above
initial approach altitude.
22 - AUTO FLIGHT
Page 1
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a- 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
22 - AUTO FLIGHT
4. Remarks and Exceptions
B
2
0
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
May be inoperative provided:
a) Autopilot is not used, and
b) Enroute operations and / or
approach minimums do not
require autopilot use.
NOTE
RVSM is not authorized.
10-3
10-4
Autopilot
Disconnect
Annunciator
Lights (Except
Collins Pro Line21
Equipped Aircraft)
Yaw Damper /
Autopilot
Disconnect Switch
on Autopilot
Controller Panel
C
-
0
May be inoperative provided:
a) Autopilot is not used below
1500 feet AGL, and
b) All remaining A/P
disengagement alerts are
operative.
B
-
0
May be inoperative provided:
a) Autopilot is not used, and
b) Enroute operations and/or
approach minimums do not
require autopilot use.
C
1
0
May be inoperative provided both
Autopilot Control Yoke Disengage
Switches are operative.
22 - AUTO FLIGHT
Page 2
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a- 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
22 - AUTO FLIGHT
10-5
***
Touch Control
Steering (TCS)
(Honeywell
Equipped Aircraft
Only)
4. Remarks and Exceptions
C
2
0
(O) May be inoperative provided:
a) Before each departure, TCS is
verified to be OFF, and
b) TCS is not used.
B
2
0
May be inoperative provided:
a) Autopilot is considered
inoperative and not used, and
b) Enroute operations and / or
approach minimums do not
require autopilot use.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Prior to takeoff perform the
following:
• Engage Autopilot.
• Press (ON) TCS button on
either pilot control wheel and
confirm servo clutches are
disengaged (no resistance to
hand/foot input).
• Release switch (OFF),
confirm servo clutches remain
disengaged.
• Disengage autopilot.
2. Do not use TCS.
NOTE
RVSM is not authorized.
10-6
Go Around (GA)
Switches
C
2
1
One may be inoperative provided
approach minimums do not require
its use.
22 - AUTO FLIGHT
Page 3
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a- 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
22 - AUTO FLIGHT
4. Remarks and Exceptions
C
2
0
(O) May be inoperative provided:
a) Autopilot is not used for
approach below 500 feet AGL,
and
b) Alternate procedures are
established and used.
(O) One may be inoperative
provided Autopilot Controller is
operative.
10-7
Control Yoke Pitch
/ Roll Switches
(Collins APS-85
Equipped Aircraft
Only)
C
2
1
10-8
A/P Flap
Annunciator(s)
(Honeywell
Equipped Aircraft
Only)
C
-
1
C
-
0
May be inoperative provided
autopilot and flight director are not
used with flaps extended.
B
1
0
(O) May be inoperative provided:
a) Yaw Damper is not used,
b) Autopilot is not used, and
c) Rudder Pedals have normal
freedom of movement.
20-1
Yaw Damper
System
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Disengage autopilot at or
above 500 feet AGL.
2. Prior to each departure,
review missed approach
procedures.
3. Select 12° pitch when a
go-around is required.
Prior to each flight, confirm normal
operation of the autopilot controller.
1. Do not use Yaw Damper or
Autopilot.
2. Confirm Rudder Pedal
movement is free.
NOTE
RVSM is not authorized.
22 - AUTO FLIGHT
Page 4
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a- 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
22 - AUTO FLIGHT
20-2
Aileron Out-of –
Trim Annunciators
(Honeywell-Equipp
ed Series 800 and
800XP Aircraft
Only)
4. Remarks and Exceptions
C
2
1
B
2
0
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
May be inoperative provided:
a) Autopilot is not used, and
b) Enroute operations and/or
approach minimums do not
require autopilot use.
NOTE
RVSM is not authorized.
20-3
Elevator Out-of –
Trim Annunciators
(Honeywell-Equipp
ed Series 800 and
800XP Aircraft
Only)
C
2
1
B
2
0
May be inoperative provided:
a) Autopilot is not used, and
b) Enroute operations and/or
approach minimums do not
require autopilot use.
NOTE
RVSM is not authorized.
22 - AUTO FLIGHT
Page 5
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a- 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
22 - AUTO FLIGHT
20-4
Autopilot Trim
Annunciators
(Collins APS-85
Equipped Aircraft
Only)
4. Remarks and Exceptions
B
2
0
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
May be inoperative provided:
a) Autopilot is not used, and
b) Enroute operations and/or
approach minimums do not
require autopilot use.
NOTE
RVSM is not authorized.
20-5
Autopilot Aileron
Trim Indicator
(Series 1 through
700 Only)
B
1
0
May be inoperative provided:
a) Autopilot is not used, and
b) Enroute operations and/or
approach minimums do not
require autopilot use.
NOTE
RVSM is not authorized.
20-6
Autopilot Elevator
Trim Indicator
(Series 1 through
700 Only)
B
1
0
May be inoperative provided:
a) Autopilot is not used, and
b) Enroute operations and/or
approach minimums do not
require autopilot use.
NOTE
RVSM is not authorized.
22 - AUTO FLIGHT
Page 6
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a- 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
22 - AUTO FLIGHT
20-7
Guidance
Controller
(Honeywell
SPZ-8000 and
Collins APS-85
and Collins Pro
Line 21 Equipped
Aircraft)
4. Remarks and Exceptions
B
1
0
(O) May be inoperative provided:
a) Autopilot is considered
inoperative,
b) Enroute operations and/or
approach minimums do not
require autopilot/guidance
controller use, and
c) For 750, 800XP, 850XP and
900XP aircraft, 0.73 IMN is
not exceeded unless Mach
Trim is operative.
NOTE
Autopilot and yaw damper will not
be available.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Plan flight to ensure that:
• Enroute operations do not
require use of autopilot.
• Approach minimums do not
require use of autopilot.
2. For 750, 800XP, 850XP and
900XP aircraft, 0.73 IMN
limitation is not exceeded
unless Mach Trim is
operative.
NOTE
Autopilot and yaw damper will not
be available.
NOTE
RVSM is not authorized.
20-8
Mach Trim System
20-9
Mode Select Panel
This item moved to ATA 27-30-5,
Revision 5
B
-
0
May be inoperative provided:
a) Autopilot is not in use, and
b) Enroute operations and/or
approach minimums do not
require autopilot use.
NOTE
RVSM is not authorized.
22 - AUTO FLIGHT
Page 7
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
23---Communications
00
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
23 - Communications
4. Remarks and Exceptions
05-1
RMU’S/RTU’s
C
2
1
(O) One may be inoperative
provided:
a) Inoperative Unit is not
powered by an Emergency
Bus, or equivalent and is not
required to accomplish
Emergency Procedures,
b) Remaining RMU/RTU is
operative, and
c) Alternate procedures are
established and used.
10-1
Communications
System (VHF, UHF)
D
-
-
Any in excess of those required by
FAR may be inoperative provided
they are not powered by the XE or
PE Bus and are not required for
emergency procedures.
1)
VHF Comm Control
Panels (Except
RMU/RTU or Pro
Line 21 Equipped
Aircraft)
a)
Frequency Transfer
Light
C
-
0
b)
Frequency Transfer
Switch
C
-
0
c)
Frequency Selector
Knob
C
-
2
d)
Frequency
Indication
C
-
2
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Confirm that inoperative RMU
is not powered by PE Bus.
2. Confirm operative RMU/RTU
functionality.
3. Crew will establish and
coordinate using alternative
procedures.
23 - COMMUNICATIONS
Page 1
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
23 - Communications
4. Remarks and Exceptions
2)
HF Communication
System
Moved to 10-4, Revision 7
10-2
Audio Control panels C
10-3
Standby Nav / Com
Controller
(Clearance Delivery
Unit)
-
2
(O) Any in excess of those required
at pilot and copilot’s seat positions
may be inoperative provided
alternate procedures are
established and used.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Place INOP placard on or
adjacent to affected panel(s).
2. Coordinate with affected
user(s) for procedures to be
used.
Deleted, Revision 6.
23 - COMMUNICATIONS
Page 2
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
23 - Communications
10-4
***
HF Communication
System
4. Remarks and Exceptions
C
-
1
(O) May be inoperative while
conducting operations that require
two LRCS provided:
a) SATCOM Voice Data Link
system is operative,
b) Alternate procedures are
established and used,
c) SATCOM coverage is
available over the intended
route of flight, and
d) If SATCOM Voice is to be
used over the intended route
of flight, SATCOM Voice short
codes (INMARSAT) or direct
dial commercial numbers
(IRIDIUM) must be available.
If not available, prior
coordination with the
appropriate ATS (FIR) facility
is required.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Confirm that remaining HF
COMM system is operative.
2. Confirm that SATCOM Data
link is operative.
3. Prior to flight, confirm that
SATCOM Data link service is
available for intended route of
flight.
NOTE
SATCOM is to be used only as a
backup to normal communications
unless otherwise authorized by the
appropriate ATS facilities.
D
-
-
Any in excess of those by FAR may
be inoperative.
23 - COMMUNICATIONS
Page 3
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
23 - Communications
20-1
***
1)
20-2
***
20-3
***
30-1
SELCAL
Channels
ACARS System
AFIS (VHF / SAT)
4. Remarks and Exceptions
C
-
0
(O) May be inoperative provided
alternate procedures are
established and used.
D
-
0
(O) May be inoperative provided
procedures do not require its use.
C
-
0
(O) May be inoperative provided
alternate procedures are
established and used.
D
-
0
(O) May be inoperative provided
procedures do not require its use.
C
-
0
(O) May be inoperative provided
alternate procedures are
established and used.
D
-
0
(O) May be inoperative provided
procedures do not require its use.
C
-
0
(O) May be inoperative provided
alternate procedures are
established and used.
D
-
0
(O) May be inoperative provided
procedures do not require its use.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Voice or other communication will
be used between the aircraft and
the ground.
1. Place INOP placard on AFIS
panel.
2. Prior to flight, determine
alternate communication to be
used.
Passenger Address
System
23 - COMMUNICATIONS
Page 4
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
23 - Communications
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Verbally brief passengers and
cabin crew in the event that
normal or emergency
procedures dictate such
action.
2. Confirm that Flight Deck/
Cabin interphone system is
operative (if installed).
1)
Passenger
Configuration
C
1
0
(O) May be inoperative provided:
a) PA System is not required by
FAR, and
b) Alternate normal and
emergency procedures, and/
or operating restrictions are
established and used.
2)
Cargo Configuration
D
-
0
(O) May be inoperative provided
procedures do not require its use.
30-2
Cabin Chimes
C
-
0
(O) May be inoperative provided PA
system is operative.
Confirm that PA system is
operative.
C
-
0
(O) May be inoperative provided
alternate procedures are
established and used.
Verbally brief passengers and cabin
crew whenever cabin chimes would
be used.
C
1
0
(O) May be inoperative provided
alternate procedures are
established and used.
Verbally brief passengers and cabin
crew.
30-3
***
Prerecorded
passenger
Announcement
System
D
30-4
Flight Deck Speakers C
1
-
0
May be inoperative provided
procedures do not require its use.
0
May be inoperative provided:
a) Procedures do not require
their use, and
b) Headsets are installed and
operative.
23 - COMMUNICATIONS
Page 5
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
23 - Communications
30-5
***
Emergency Locator
Transmitter (ELT)
1)
Survival Type ELT’s
2)
Fixed ELT’s
40-1
Crewmember
Interphone System
1)
Flight Deck Cabin,
Cabin to Flight Deck
Function(s)
2)
Flight Deck to
Ground Function
4. Remarks and Exceptions
D
-
A
0
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Any in excess of those required by
FAR may be inoperative or missing.
May be inoperative or missing
provided repairs are made within 90
days.
D
-
-
Any in excess of those required by
FAR may be inoperative or missing.
C
-
0
(O) May be inoperative provided
alternate procedures are
established and used.
D
-
0
(O) May be inoperative provided
procedures do not require its use.
C
1
0
(O) May be inoperative provided
alternate procedures are
established and used.
D
1
0
May be inoperative provided
procedures do not require its use.
Use verbal communication between
flight deck and cabin.
Brief crew members and ground
personnel on hand signals to be
used.
23 - COMMUNICATIONS
Page 6
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
23 - Communications
4. Remarks and Exceptions
50-1
Headsets (Except
Microphone)
C
-
1
One may be inoperative at either
pilot’s station provided speaker
system is operative.
1)
Active Noise
Canceling/
Reduction Function
D
-
0
May be inoperative provided normal
audio function of the headset is
operative.
50-2
Handheld
Microphones
C
2
1
One may be inoperative at either
pilot’s station provided associated
headset with boom microphone is
operative.
50-3
Boom Microphones
(Including Headset
Microphones)
A
-
0
May be inoperative provided:
a) Associated Hand Microphone
is installed and operative, and
b) Repairs are made within three
flight days.
D
-
0
Any in excess of those required by
FAR may be inoperative.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
50-4
***
Glareshield
Microphone Key
Button(s)
D
2
0
(O) May be inoperative provided
Handheld Microphone on affected
side is operative.
Utilize Handheld Microphones or
Yoke Microphone switches
50-5
***
Flight Deck
Pilot-to -Pilot
Interphone System
C
1
0
(O) May be inoperative provided:.
a) Alternate pilot-to-pilot
communication procedures
are established and used, and
b) Repairs are made within three
flight days.
Use hand signals and/or direct
voice communication.
23 - COMMUNICATIONS
Page 7
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
23 - Communications
60-1
Static Dischargers
(Non-CDL Aircraft)
60-2
Surface Bond Straps
70-1
Cockpit Voice
Recorder
4. Remarks and Exceptions
C
-
-
Deleted Revision 8c, use CDL
A
-
0
May be inoperative provided:
a) FDR is operative, and
b) Repairs are made within three
flight days.
(Aircraft without
FDR)
A
-
0
May be inoperative provided repairs
are made within three flight days.
(Aircraft operated by A
other than Air
Carrier or
Commercial
Operator Certificate
Holder)
Independent Power
Source
70-2
***
Flight Phone
1)
OPERATIONAL
PROCEDURES
One Static discharger may be
damaged or missing.
(Aircraft with FDR)
1)
MAINTENANCE
PROCEDURES
-
0
C
1
0
Cockpit
D
-
0
2)
Cabin
D
-
0
70-3
***
Satellite
Communications
System (SATCOM)
D
-
0
May be inoperative provided repairs
are made in accordance with
applicable FAR’s.
23 - COMMUNICATIONS
Page 8
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
23 - Communications
80-1
***
Heads Up
Technology Inc.
Checklist System
4. Remarks and Exceptions
D
-
0
(O) May be inoperative provided
alternate procedures are
established and used.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Use paper or other checklist.
NOTE
Any activation switch which
functions normally may be used.
23 - COMMUNICATIONS
Page 9
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
24---Electrical Power
a
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
24 - Electrical Power
4. Remarks and Exceptions
20-1
AC Main Inverters
(Only Aircraft
Equipped with
Standby Inverter)
C
2
1
(O) One may be inoperative
provided:
a) Standby inverter is verified
operative before each
departure,
b) For aircraft with two (2) AOA
Vanes and SSU systems, both
Engine Driven AC alternators
are operative, and
c) Flight is not conducted in
known or forecast icing
conditions.
20-2
Standby Inverter
(Except Pro Line
21)
B
1
0
May be inoperative for Day
Minimum Speed Control (VMC)
provided both main inverters are
operative.
(Pro Line 21 Only)
B
1
0
May be inoperative provided both
main inverters are operative.
Inverter Fail
Lights/
Annunciators
C
2
0
(O) May be inoperative provided:
a) Auto-changeover system is
operative, and
b) Both main inverters are
operative, and
c) AC voltmeter is installed and
operative.
20-3
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Perform inverter check prior to
each departure.
2. For aircraft with two (2) AOA
Vanes and SSU systems,
verify both Engine Driven AC
alternators are operative.
3. Plan each flight to avoid
known or forecast icing
conditions along entire route
including alternate
destination.
1. Confirm both inverters are
operative.
2. Confirm AC powered
equipment operates with
either inverter selected OFF.
3. Confirm AC voltmeter
indicates correct voltage.
24 - ELECTRICAL POWER
Page 1
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
24 - Electrical Power
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
20-4
Standby Inverter
“ON” Light /
Annunciator
C
1
0
(O) May be inoperative provided
standby inverter is verified
operative before each departure.
Prior to each departure:
1. Select STBY INV to ARM.
2. Select INV 1 and INV 2 to
STOP.
3. Confirm normal Standby
Inverter voltage on XE buss.
20-5
AC Voltmeter
C
1
0
(O) May be inoperative provided:
a) All inverters are operative,
and
b) All AC system Annunciators
are operative.
1. Prior to each departure,
confirm INV and buss FAIL
annunciators illuminate with
all inverters OFF.
2. Confirm annunciators
extinguish with inverters ON.
20-6
AC Frequency
Meter (Series 600
and 700 only)
C
-
0
May be inoperative provided
electrical busbar fail lights are
operative.
21-1
AC Alternator(s)
1)
Aircraft with One AC
Alternator
C
1
0
(O) May be inoperative provided:
a) AFM Limitations are
observed,
b) Windshield fluid de-icing
system is installed and
operative, and
c) Aircraft is not operated in
known or forecast icing
conditions.
1. Observe AFM airspeed
(birdstrike) limitations.
2. Confirm windscreen fluid
de-icing system is operative.
3. Plan each flight to avoid
known or forecast icing
conditions along entire route
including alternate
destination.
24 - ELECTRICAL POWER
Page 2
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
24 - Electrical Power
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
C
2
1
(O) One may be inoperative
provided:
a) For aircraft with 2 AOA Vane
and SSU systems, both Main
AC inverters are operative,
and
b) Aircraft is not operated in
known or forecast icing
conditions.
1. For aircraft with two (2) AOA
Vane and SSU systems, both
Main AC Inverters are
operative.
2. Plan each flight to avoid
known or forecast icing
conditions along entire route
including alternate
destination.
Aircraft with One AC
Alternator
C
1
0
(O) May be inoperative provided
both windshield heating systems
are operative.
1. With RH engine running select
W/SCREEN HEAT ON.
2. Verify by feel that windscreen
heating is operative.
Aircraft with Two AC
Alternators
C
2
0
(O) May be inoperative provided:
a) Both AC alternators are
operative, and
b) Auto-changeover system is
operative.
1. Confirm both AC alternators
are operative.
2. With engines running, select
screen heats and alternator
ON, and verify screen heat is
operative.
3. Switch one alternator OFF
and verify the “B” screens are
no longer heated and the
associated VANE HTR FAIL
does not illuminate.
2)
Aircraft with Two AC
Alternators
21-2
AC Alternator Fail
Warning Light /
Annunciator(s)
1)
2)
24 - ELECTRICAL POWER
Page 3
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
24 - Electrical Power
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
D
1
0
(M) May be inoperative provided:
a) Procedures do not require its
use, and
b) System is deactivated.
1. Refer to applicable Hawker
Aircraft Wiring Parts Catalog
(Chapter 24).
2. Remove fuse from affected
inverter DC input.
3. Place ‘INOP’ placard adjacent
to affected inverter switch on
CG Panel.
Indicator
C
-
0
(M) May be inoperative provided
Battery Hot Caution annunciators
are operative.
1. Disconnect Batt Temp
connector from both batteries.
2. Jumper across Pins A & B.
3. Verify BATT HOT lights
illuminate.
BATT HOT Caution
Annunciators
C
-
0
(O) May be inoperative provided:
a) Battery Temperature Indicator
is operative, and
b) Battery temperatures are
monitored in flight.
21-3
***
115 VAC / 60 Hertz
(Hz) System
31-1
Battery
Temperature (With
NiCad Battery
Only)
1)
2)
NOTE
OPERATIONAL
PROCEDURES
1. Prior to flight, confirm No. 1
and No. 2 Battery
Temperatures are normal.
2. Regularly monitor No. 1 and
No. 2 Battery Temperatures
during flight.
Not required for lead acid battery
systems.
32-1
Battery NO
CHARGE Light
(Series 1 through
700 only)
C
1
0
(O) May be inoperative provided
battery is verified to be charging
normally.
With engines running, confirm
battery charging by checking
ammeter on CG panel.
24 - ELECTRICAL POWER
Page 4
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
24 - Electrical Power
32-2
***
Battery Heater
Muffs
34-1
Engine Driven
Generators
34-2
APU Generator
37-1
DC Voltmeter
37-2
DC Generator Fail
Lights /
Annunciators
4. Remarks and Exceptions
C
2
0
(O) May be inoperative provided:
a) Battery Temperature Indicator
is operative, and
b) Battery temperature is
monitored to ensure
temperature remains above
–10 °C at all times.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Prior to flight, confirm No. 1
and No. 2 Battery
Temperatures are normal.
2. Regularly monitor No. 1 and
No. 2 Battery Temperatures
during flight.
3. Battery temperatures must
remain above -10°C.
Deleted, Revision 3.
C
1
0
Deleted, Revision 5
C
2
0
(O) May be inoperative provided:
a) Both ammeters are operative,
and
b) DC voltmeter is operative.
With engines running and both
generators ON, confirm:
1. Both ammeters indicating
current, and
2. Both DC voltmeters indicating
proper voltage.
24 - ELECTRICAL POWER
Page 5
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
24 - Electrical Power
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
37-3
DC Bus Tie Light
Annunciator
C
1
0
(O) May be inoperative provided:
a) Bus Tie system is operative,
b) Both ammeters are operative,
and
c) Generator fail lights /
annunciators are operative.
1. Prior to each departure:
• Select GEN 1 to TRIP.
• Confirm current on GEN 2.
• Confirm Power (PS)1 and
PS2 voltage with Buss Tie
CLOSED.
• Open Buss Tie and verify
voltage on PS2 only and GEN
1 FAIL annunciator.
• Reset GEN 1 and Buss Tie.
2. Repeat above for GEN 2 TRIP
by substituting GEN 1 for
GEN 2 and vice-versa, in
above steps.
37-4
Battery Contactor
Annunciators
C
2
1
(O) One may be inoperative
provided before each departure:
a) Emergency contactor is
verified operative, and
b) Battery (Batt) contactor is
verified operative.
1. Confirm Batt 1 and Batt 2
voltage on overhead
voltmeter.
2. Select Battery switch to ON
and confirm PE voltage on
overhead voltmeter.
3. Start APU or either engine.
4. Confirm increase of Batt 1 and
Batt 2 voltage on overhead
voltmeter when generator is
brought on line and Buss Tie
switch is selected to CLOSE.
5. Confirm charging current to
Batt 1 and Batt 2 on overhead
ammeter.
(Series 1 through
700)
24 - ELECTRICAL POWER
Page 6
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
24 - Electrical Power
4. Remarks and Exceptions
37-5
APU Generator
Fail Light /
Annunciator
C
1
0
37-6
APU Generator
Overheat Light /
Annunciator
C
1
0
40-1
External Power
System
D
1
0
50-1
AC Bus Fail Lights
/ Annunciators
(Standby InverterEquipped Aircraft
only)
C
3
2
50-2
***
26 VAC Bus Fail
Annunciators
1)
INST 1 FAIL
C
1
0
2)
INST 2 FAIL
C
1
0
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
May be inoperative provided APU
generator is not used.
(O) One may be inoperative
provided:
a) Standby inverter (STBY INV)
is verified operative before
each departure,
b) Inverter associated with the
inoperative light / Annunciator
is verified operative before
each departure, and
c) Voltmeter is operative.
Before each departure:
1. Turn off both main inverters
and note that STBY INV ON
light illuminates.
2. Confirm standby inverter
output voltage on XE bus.
3. Confirm inverter output
voltage for associated bus fail
annunciator on XS1 or XS2.
24 - ELECTRICAL POWER
Page 7
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
24 - Electrical Power
4. Remarks and Exceptions
60-1
Bus Tie Contactor
System (Split Bus
Tie Contactor
Aircraft only)
C
1
0
(O) May be inoperative provided:
a) Both engine driven DC
generators are operative,
b) Bus Tie contactor is verified to
be open before each
departure, and
c) PS1 AND PS2 voltage is
verified normal before each
departure.
60-2
***
FIS Power
Recovery System
C
1
0
May be inoperative provided
procedures do not require its use.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Prior to each departure:
1. Individually check #1 & #2
Generator voltage.
2. Turn #2 Generator ON, turn
#1 Generator OFF and
confirm PS1 Buss voltage is
zero.
3. With both generators ON,
confirm Generator (GEN) 1
FAIL and GEN 2 FAIL
annunciators are both out.
4. Confirm PS1 and PS2 voltage
normal.
24 - ELECTRICAL POWER
Page 8
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
25---Equipment/Furnishings
00
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
25 - EQUIPMENT/
FURNISHINGS
00-1
***
4. Remarks and Exceptions
Non-Essential
Equipment &
Furnishings (NEF)
-
0
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
May be inoperative, damaged, or
missing provided that the item(s) is
deferred in accordance with the
operator’s NEF program. The NEF
program, procedures, and
processes are outlined in the
operator’s (insert name) Manual.
(M) & (O) procedures, if required,
must be available to the flight crew
and included in the operator’s
appropriate document.
NOTE
Exterior Lavatory Door Ash Trays
are not considered convenience
items.
00-2
Medical Transport
System (AIRMED
EMS)
C
1
0
(M) May be inoperative provided:
a) Medical Stretcher or Pediatric
Incubator is not occupied, and
b) All Medical Equipment
Systems are deactivated.
1)
EMS AC Inverter
System
C
1
0
(M) May be inoperative provided
system is deactivated.
2)
EMS Suction Air
System
C
1
0
(M) May be inoperative provided
vacuum pump is deactivated.
3)
EMS Pressure Air
System
C
2
0
(M) May be inoperative provided
affected air compressor is
deactivated.
25 - EQUIPMENT/FURNISHINGS
Page 1
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
25 - EQUIPMENT/
FURNISHINGS
4. Remarks and Exceptions
4)
EMS Oxygen
System
C
1
0
(M) May be inoperative provided
system is deactivated.
10-1
Pilot(s) Seat
Adjustment
System
C
2
0
(M) May be inoperative provided:
a) Position of the seat(s) permits
normal pilot visibility and full
flight control movement, and
b) Seat(s) is/are secured with
mechanical stops.
1)
Crew Shoulder
Harness
Deleted, Revision 2.
10-2
Cockpit
Convenience Items
Deleted, Revision 8a. Use NEF
Program.
10-3
Cockpit Sun Visors D
-
0
10-4
Observer Seat
(Including
Associated
Equipment)
A
-
-
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Thoroughly inspect seat
locking mechanisms for
engagement and security.
Alternative means may be
used to ensure locking.
2. Ensure that seat position is
satisfactory for pilot vision and
control.
May be inoperative provided:
a) A passenger seat in the
passenger cabin is available
to an FAA inspector for the
performance of official duties,
and
b) Repairs are made within two
flight days.
25 - EQUIPMENT/FURNISHINGS
Page 2
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
25 - EQUIPMENT/
FURNISHINGS
4. Remarks and Exceptions
A
-
-
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
May be inoperative provided:
a) Required minimum safety
equipment (safety belt and
oxygen) is available,
b) Seat is acceptable to the FAA
inspector for performance of
official duties, and
c) Repairs are made within two
flight days.
NOTE
These provisos are intended to
provide for occupancy of the above
seat by an FAA Inspector when the
minimum safety equipment (oxygen
and safety belt) is functional and
the inspector determines the
conditions to be acceptable.
NOTE
The Pilot-in-Command will
determine if the minimum safety
equipment is functional for other
person(s) authorized to occupy an
observer seat.
25 - EQUIPMENT/FURNISHINGS
Page 3
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
25 - EQUIPMENT/
FURNISHINGS
20-1
Passenger Seats
(Including Seat
Backs and
Armrests)
4. Remarks and Exceptions
C
-
-
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
May be inoperative provided:
a) Seat does not block an
Emergency Exit.
b) Seat does not restrict any
passenger from access to the
main aircraft aisle, and
c) Affected seat(s) are blocked
and placarded, ’DO NOT
OCCUPY’.
NOTE
A seat with an inoperative seatbelt
is considered inoperative.
NOTE
Affected seat(s) may include the
seat(s) behind and / or adjacent
seat.
1)
Recline
Mechanism(s)
D
-
-
(M) May be inoperative and seat
occupied provided seat is secured
in the full up-right position.
C
-
-
(O) May be inoperative and seat
occupied provided seatback is
immovable in the full upright
position.
1. Confirm that seat is locked in
full up-right position.
2. Tape recline lever in the
locked position.
3. Placard recline lever, “INOP DO NOT USE”.
Confirm that seat is locked in full
up-right position and does not
move.
25 - EQUIPMENT/FURNISHINGS
Page 4
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
25 - EQUIPMENT/
FURNISHINGS
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
2)
Underseat Baggage
Stowage
C
-
-
(O) May be inoperative provided:
a) Baggage is not stowed under
seat with inoperative stowage,
b) Associated seat is placarded
“DO NOT STOW BAGGAGE
UNDER THIS SEAT”, and
c) Procedures are established to
alert Cabin Crew of
inoperative stowage.
1. Placard associated seat “DO
NOT STOW BAGGAGE
UNDER THIS SEAT.
2. Confirm there is no baggage
under associated seat(s).
3. Brief passengers and Cabin
Crew not to place baggage
under associated seat(s).
3)
Armrest
C
-
-
(O) May be inoperative provided:
a) Armrest does not block an
Emergency Exit,
b) Armrest does not restrict any
passenger from access to the
main aircraft aisle, and
c) For an armrest with a recline
mechanism, seat is
immovable in the full upright
position.
1. Confirm armrest does not
block any emergency exit.
2. Confirm armrest does not
restrict access to aisle.
3. If armrest has a seat back
recline lever, confirm seat
back is in full up-right position
and does not move.
Flight Inspection
Panel System
D
1
0
May be inoperative provided
procedures do not require its use.
20-2
***
25 - EQUIPMENT/FURNISHINGS
Page 5
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
25 - EQUIPMENT/
FURNISHINGS
4. Remarks and Exceptions
20-3
Waste
Receptacle(s)
Access Door(s)/
Covers
D
-
-
May be inoperative provided:
a) Container is empty and
access is secured to prevent
waste introduction into
compartment, and
b) Sufficient waste receptacles
are available to accommodate
all waste that may be
generated on a flight.
20-4
Exterior Lavatory
Door Ash Tray(s)
A
1
0
May be missing provided it is
replaced within 3 calendar days.
60-1
Emergency
Medical Equipment
1)
Automatic External
Defibrillator (AED)
and/or associated
equipment
D
-
-
Any in excess of those required by
FAR may be incomplete, missing,
or inoperative.
2)
Emergency Medical
Kit (EMK) and/or
associated
equipment
D
-
-
Any in excess of those required by
FAR may be incomplete, missing,
or inoperative.
3)
First Aid Kit (FAK)
and/or associated
equipment
D
-
-
Any in excess of those required by
FAR may be inoperative.
Overwater
Equipment
D
-
-
Any in excess of those require by
FAR may be inoperative.
60-2
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
25 - EQUIPMENT/FURNISHINGS
Page 6
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
25 - EQUIPMENT/
FURNISHINGS
60-3
***
Cockpit Smoke
Vision System
(CSVS)
(STC#SA00892LA)
4. Remarks and Exceptions
D
-
0
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
May be inoperative or missing.
25 - EQUIPMENT/FURNISHINGS
Page 7
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
26---Fire Protection
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8 - 02/18/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
26 - FIRE PROTECTION
4. Remarks and Exceptions
10-1
Engine Fire
Warning Lights/
Annunciators
1)
Series 1 through
700 only
C
2
0
May be inoperative provided HP
Cock Fire Warning lights are
operative.
2)
Series 800, 800XP,
850XP, 900XP and
750
C
-
0
May be inoperative provided HP
Cock Fire Warning lights are
operative.
10-2
HP Cock
Annunciator Fire
Warning Lights
C
2
0
May be inoperative provided
Engine Fire Warning System is
operative.
15-1
APU Fire Detection
System
C
1
0
May be inoperative provided APU is
not used.
1)
Warning Bell
C
1
0
May be inoperative for ground
operations provided:
a) APU Fire warning Annunciator
is operative, and
b) System is continuously
monitored by a qualified
person from the cockpit
control panel.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
26 - FIRE PROTECTION
Page 1
Feb.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8 - 02/18/2008 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
26 - FIRE PROTECTION
4. Remarks and Exceptions
2)
Warning
Annunciator
C
1
0
May be inoperative for ground
operations provided:
a) APU Fire warning bell is
operative, and
b) System is continuously
monitored by a qualified
person from the cockpit
control panel.
15-2
APU Fire Detection C
1
0
(M) May be inoperative provided:
a) Failure is verified to be in the
light circuit, and
b) System operation is verified
once each flight day.
C
1
0
May be inoperative provided APU is
not used.
MAINTENANCE
PROCEDURES
Prior to the first flight of the day,
push and hold FIRE TEST switch
(APU), then verify the bell sounds.
20-1
APU Fire
Extinguisher
System
C
1
0
May be inoperative provided APU is
not used.
20-2
APU Extinguisher
Pressure Relief
Discharge
Indicator
C
1
0
Verify that fire extinguisher
(M) May be damaged or missing
provided Indicator readings or other pressure is within limits.
acceptable means are used to
verify adequate charge.
C
1
0
May be damaged or missing
provided APU is not used.
C
2
0
(M) May be inoperative provided an
acceptable procedure is used to
verify bottle charge is adequate
before each departure.
20-3
Engine Fire
Extinguisher Relief
Discharge Indicator
OPERATIONAL
PROCEDURES
1. Prior to each flight, verify that
fire extinguisher pressures are
within limits, or
2. Perform weight check on both
fire bottles.
26 - FIRE PROTECTION
Page 2
Feb.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8 - 02/18/2008 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
26 - FIRE PROTECTION
4. Remarks and Exceptions
20-4
Portable Fire
Extinguishers
D
-
-
(M) Any in excess of those required
by FAR may be unserviceable or
missing provided:
a) Inoperative fire extinguisher is
tagged inoperative, removed
from location, and placed out
of sight so it can not be
mistaken for a functional unit,
and
b) Required distribution is
maintained.
30-1
Forward / Aft
Baggage Smoke
Detection Systems
C
-
0
(O) May be inoperative provided
procedures are established and
used to ensure the associated
compartment remains empty, or is
confirmed to contain only cargo
handling equipment, ballast, which
may be loaded in Unit Loading
Devices (ULD’s), and / or Fly Away
Kits.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Tag affected fire extinguishers
‘INOPERATIVE’ and stow out
of sight.
2. Verify that required fire
extinguishers are operational
and properly located.
1. Install DO NOT USE placard
prominently inside baggage
compartment.
2. Check that affected baggage
compartment is either not
used or contains only cargo
handling equipment, ballast,
which may be loaded in
ULD’s, and/or Fly Away Kits.
NOTE
Operator Minimum Equipment Lists
(MEL’s) must define which items
are approved for inclusion in Fly
Away kits, and which materials can
be used as ballast.
26 - FIRE PROTECTION
Page 3
Feb.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8 - 02/18/2008 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
26 - FIRE PROTECTION
30-2
***
Lavatory Smoke
Detection System
4. Remarks and Exceptions
C
-
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
May be inoperative provided:
a) Lavatory waste receptacle is
empty,
b) Lavatory door is locked closed
and placarded
‘INOPERATIVE-DO NOT
ENTER’, and
c) Lavatory is used only by crew
members.
NOTE
These provisos are not intended to
prohibit Lavatory use or inspections
by crew members.
NOTE
A lavatory Smoke Detector System
is not required for all cargo
operations.
30-3
***
Rear Baggage
Pannier Smoke
Detection System
(Except 750)
C
1
0
(O) May be inoperative provided:
1. Compartment remains empty,
and
2. Pannier Heating Selector
remains OFF.
1. Install ‘DO NOT USE’ placard
prominently inside baggage
compartment.
2. Prior to each departure, verify
that compartment is empty.
3. Select and leave Pannier Heat
OFF.
26 - FIRE PROTECTION
Page 4
Feb.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8 - 02/18/2008 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
26 - FIRE PROTECTION
30-4
30-5
External Baggage
Compartment
(EBC) Smoke
Detector (750
Only)
External Baggage
Compartment
(EBC) Fire
Extinguisher
System (750 Only)
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Verify remaining Smoke Detector
System is operative prior to each
departure.
C
2
1
One Smoke Detector system may
be inoperative provided the
remaining Smoke Detector System
is operative prior to each departure.
C
2
0
(O) May be inoperative provided:
1. Compartment remains empty,
and
2. EBC Air Valve is OFF.
1. Prior to each departure, verify
that compartment is empty,
and
2. Verify EBC Air Valve is OFF.
C
1
0
(O) May be inoperative provided:
1. Compartment remains empty,
and
2. EBC Air Valve is OFF.
1. Prior to each departure, verify
that compartment is empty,
and
2. Verify EBC Air Valve is OFF.
26 - FIRE PROTECTION
Page 5
Feb.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
27---Flight Controls
00
‘
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
27 - FLIGHT CONTROLS
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
10-1
Aileron Trim
Position Indicator
B
1
0
(O) May be inoperative provided,
before each departure:
a) Aileron trim system is visually
verified operative, and
b) Aileron trim is visually verified
to be neutral.
1. Operate aileron trim while
observing LH aileron trim tab
for appropriate movement
prior to each departure.
2. With controls in neutral
position, confirm the aileron
trim tab is centered.
20-1
Rudder trim
Position Indicator
B
1
0
(O) May be inoperative provided,
before each departure:
a) Rudder trim system is visually
verified operative, and
b) Rudder trim is visually verified
to be neutral.
1. Operate rudder trim while
observing rudder trim tab for
appropriate movement prior to
each departure.
2. With controls in neutral
position, the rudder trim tab is
centered.
NOTE
Check requires coordinated effort of
both crew to perform.
27 - FLIGHT CONTROLS
Page 1
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
27 - FLIGHT CONTROLS
20-2
Rudder Pedal
Adjustment
Systems
4. Remarks and Exceptions
C
2
0
(M) May be inoperative provided
affected adjustment system(s) can
be secured in a position which suits
affected pilot’s requirements.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Remove the crew seat and
flight compartment carpets
from affected side.
CAUTION
Make sure correct securing screws
are identified and kept with
correlating floor panels.
2. Remove flight compartment
floor panels as necessary.
3. Disconnect the rudder pedal
assembly adjustment cable at
the lever.
4. Pull up on cable to disengage
locking pin and move rudder
pedals to desired position.
5. Check that the pin is fully
engaged in locked position
and that spring force will
maintain lock.
6. Disconnect adjustment cable
from rudder pedal adjustment
assembly.
7. Install flight compartment floor
panels using correct screw
length.
8. Install flight compartment
carpets and the crew seat.
27 - FLIGHT CONTROLS
Page 2
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
27 - FLIGHT CONTROLS
30-1
4. Remarks and Exceptions
Electrical Elevator B
Trim
1
0
(M) (O) May be inoperative
provided:
a) Associated circuit breakers
are pulled and collared,
b) Mechanical Elevator Trim
System is verified operative,
c) Autopilot is considered
inoperative, and
d) For 750, 800XP, 850XP, and
900XP aircraft, the mach trim
system is considered
inoperative and appropriate
AFM speed limitations
observed.
MAINTENANCE
PROCEDURES
1. Locate ELEC PITCH TRIM
Circuit Breaker.
2. Pull and Collar ELEC PITCH
TRIM circuit breaker.
OPERATIONAL
PROCEDURES
1. Operate mechanical elevator
trim throughout full range
before departure, and
2. Verify that trim is set in normal
position prior to takeoff, and
3. Plan for flight without
autopilot, and
4. Do not exceed AFM speed
limitation of Mach 0.73 (750,
800XP, 850XP and 900XP
Only)
5. Plan flight to avoid RVSM
operation.
NOTE
RVSM is not authorized.
30-2
Stall Warning
Identification
System
1)
(Series 1 through
700 Only)
B
2
1
Prior to each departure, verify
(M) (O) May be inoperative
operational stall detector per
provided, before each departure:
Table 1.
a) Remaining stall detector
pneumatic system is verified
operative, and
b) Remaining stall test channel is
verified operative.
Prior to each departure, confirm
that stall test is operative for the
operational system.
27 - FLIGHT CONTROLS
Page 3
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
27 - FLIGHT CONTROLS
2)
(Series 800, 800XP B
with 3 Channels
Only)
4. Remarks and Exceptions
3
2
(M) (O) One stall warning and / or
identification channel may be
inoperative provided:
a) Inoperative channel is
inhibited by pulling and
collaring the associated
STALL IDENT circuit breaker
(SSU and STALL IDENT
amber annunciators
illuminated if IDENT 1 or 2 is
inhibited),
b) Before each departure,
normal operation of the
remaining channels is verified
by independently pressing the
cockpit TEST buttons,
c) Before each departure,
normal operation of the stick
pusher is verified (stall valves
A and B OPEN with red
annunciators illuminated) by
pressing the two operative
TEST buttons simultaneously,
and
d) Lights erroneously ON due to
system failure are
deactivated.
MAINTENANCE
PROCEDURES
1. Pull and collar associated
STALL IDENT circuit breaker.
2. Remove light bulb from any
annunciator which is
erroneously illuminated.
OPERATIONAL
PROCEDURES
1. Prior to each departure,
confirm both remaining stall
channels operate normally by
independently pressing
associated TEST buttons, and
2. Confirm normal operation of
pusher by pressing both
operational TEST buttons.
27 - FLIGHT CONTROLS
Page 4
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
27 - FLIGHT CONTROLS
4. Remarks and Exceptions
30-3
Stick Shaker
Motors (Series
750, 800, 800XP,
850XP and 900XP
Only)
C
2
1
One may be inoperative provided:
a) Both stall warning channels
are operative, and
b) Remaining stick shaker
system is verified operative.
30-4
C
Stall Warning
Autopilot
Disconnect
System (Series 800
without Mod.
253146 Installed
Only)
1
0
(O) May be inoperative provided
Stick Shaker Autopilot Disconnect
functions of both Stall Warning
Channels 1 and 2 are verified
operative before each departure.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Prior to each departure,
perform the following checks:
2. Engage Autopilot and hold
light force on control yoke.
3. Push and hold No. 1 STALL
button
• Confirm that stick shaker
motors are operative and
autopilot disengages.
• Confirm IDENT 1 (both sides)
and STALL IDENT
annunciators illuminate after 4
or 5 seconds.
4. Release No. 1 STALL button.
5. Engage autopilot and hold
light force on control yoke.
6. Push and hold No. 2 STALL
button.
• Confirm that stick shaker
motors operate and autopilot
disengages.
• Confirm IDENT 2 (both sides)
and STALL IDENT
annunciators illuminate after 4
or 5 seconds.
7. Release No. 2 STALL button.
27 - FLIGHT CONTROLS
Page 5
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
27 - FLIGHT CONTROLS
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
30-5
Mach Trim System C
(Series 750, 800XP,
850XP and 900XP
Only)
1
0
(O) May be inoperative provided:
a) Mechanical Elevator Trim
System is verified operative
before each departure, and
b) AFM Speed Limitation of 0.73
Indicated Mach Number (IMN)
is not exceeded unless Auto
Pilot verified operative and is
used.
1. Operate mechanical elevator
trim throughout full range
before departure, and
2. Confirm that trim is set in
normal position prior to
takeoff, and
3. Do not exceed AFM speed
limitations with autopilot
disengaged.
50-1
C
Flap Position
Indicator (On
Center Instrument
Panel)
1
0
(O) May be inoperative provided:
a) Flap position is visually
verified to be at 0° before
each departure,
b) AFM procedures for flap 0°
take-off and landing are
observed, and
c) Flaps remain in the retracted
position for the entire flight.
1. Visually confirm that flaps are
at 0° prior to each departure
by checking the position of the
rig marks on the wing and flap
assembly.
2. 0° flap performance will be
used for takeoff and landing.
3. Flaps will not be used in flight.
4. AFM FLAPLESS LANDING
procedures will be followed.
50-2
Flap Handle Select C
Position Indicator
(On Control
Pedestal)
1
0
(O) May be inoperative, and flap
used, provided:
a) Flap position Indicator (On
Center Instrument Panel) is
operative, and
b) Before each departure, flap
position indication is visually
verified for each flap selection.
Confirm that actual flap position
indication is correct for each flap
position prior to each departure.
27 - FLIGHT CONTROLS
Page 6
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
27 - FLIGHT CONTROLS
50-3
Flap Position
Switches
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
C
1
0
(O) May be inoperative provided:
a) Flap position is visually
verified to be 0° before each
departure,
b) AFM procedures for flap 0°
take-off and landing are
observed, and
c) Flaps remain in the retracted
position for the entire flight.
1. Visually confirm that flaps are
at 0° prior to each departure
by visual use of marks on
flaps.
2. 0° flap performance will be
used for takeoff and landing.
3. Flaps will not be used in flight.
4. AFM FLAPLESS LANDING
procedures will be followed.
A
4
0
Perform the LH and RH Flap Bias
(M) (O) May be inoperative
Switches - Bypass Procedure,
provided:
Refer to Table 3.
a) LH and RH Flap Bias
Switches are bypassed to
position flaps in 0° position,
b) Flaps are verified to be in the
0° position and are not used.
c) AFM procedures for flap 0°
take-off and landing are
observed, and
d) Repairs are made within one
flight day.
1. Confirm LH and RH Flap Bias
Switches are bypassed to
position flaps in 0° position.
2. Visually confirm that flaps are
at 0° prior to each departure
by visual use of marks on
flaps.
3. 0° flap performance will be
used for takeoff and landing.
4. Flaps will not be used in flight.
5. AFM FLAPLESS LANDING
procedures will be followed.
27 - FLIGHT CONTROLS
Page 7
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
27 - FLIGHT CONTROLS
60-1
Air Brake Position C
Indicator(s)
4. Remarks and Exceptions
-
0
(O) May be inoperative provided,
before each departure:
a) Airbrakes are visually verified
operative,
b) Takeoff Warning System is
verified operative with Air
Brake deployment, and
c) Airbrakes are visually verified
retracted.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Extend and retract airbrakes
and visually confirm normal
operation.
2. Confirm Takeoff Warning
system is operative by
advancing the throttles to 40%
to 60% and pull back on the
airbrake handle to slightly
deploy the airbrake. The
warning horn should sound.
3. Airbrakes are visually
confirmed retracted prior to
departure by observation
through cabin windows.
Trailing edge of Air Brakes
should fair smoothly with
wing.
27 - FLIGHT CONTROLS
Page 8
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
27 - FLIGHT CONTROLS
60-2
Control Column
Lock System
4. Remarks and Exceptions
C
1
0
(O) May be inoperative provided:
a) Procedures are established
and used to prevent damage
from gusts while aircraft is on
the ground, and
b) Throttle Lever Baulks are
verified disengaged prior to
each departure.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. A suitable alternate means is
provided to secure controls to
prevent ground gust induced
damage to control system
when aircraft is parked.
NOTE
Assure that any alternate means
employed are prominent in display,
so they will not be inadvertently left
in place when the aircraft is
dispatched. Such means shall be
effectively secured to prevent
slippage under gust load
conditions.
2. Advance each throttle lever
through full range of
movement noting travel limits.
3. Confirm throttle lever baulks
are disengaged by advancing
both throttle levers
simultaneously through full
range of movement without
travel restriction.
60-3
Rudder Gust Lock
Flapper Door
Deleted Revision 8c, use CDL.
27 - FLIGHT CONTROLS
Page 9
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Table 1
Stall Detection Maintenance and Operational Procedure
27- FLIGHT CONTROLS
30-2
1)
Stall Warning
Identification
System
(Series 1 through
700, Only)
MAINTENANCE/ OPERATIONAL
PROCEDURES
1. Connect the pressure outlet of one pitot/static test set to the right pitot head, and the pressure
outlet of the other test set to the operative wing stall detector vent.
2. Confirm that No.6 static vent orifices on each static vent plate are clear of obstruction.
3. Energize PE busbar.
4. At the pitot head connection, apply sequentially the pressure (P) values given in Table 2, and in
each case slowly increase pressure (V) to the stall detector vent until the stick shaker motor
operates. Note V pressure at each point.
5. Verify that V pressures meet requirements of Table 2, and then release pressures.
NOTE
Table 2 provides a V/P ratio of 0.71 ± 0.02 on increasing pressure, when checked using Millimeter(s)
(mm) water.
NOTE
When A.S.I. gauges (calibrated in knots) are used as alternative to mm water gauge, the readings will
not provide the same ratio as mm water to knots as conversion is not linear. Reference Check
Pressures Table 2.
6. Remove test set connection from pitot head and apply increasing pressure to stall detector vent
until stick shaker motor operates. Maintain this vent pressure, reconnect test set to pitot head
and apply increasing pressure (P) until warning system cuts out. Verify that, at cutout, the
pressure (P) was between 76.5 and 86.0 mm water (70 ± 2 knots). Release pressures.
7. Disconnect and remove test sets.
8. De-energize busbar.
27 - FLIGHT CONTROLS
Page 10
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Table 2
Check Pressures
MIllimeters (mm) Water
Knots
Pitot (P)
Vent (V)
Pitot (P)
Vent (V)
1st Check Point
100
67-73
78
64.5-66.5
2nd Check Point
150
103.5-109.5
95
79-81
3rd Check Point
200
138-146
110
91-94
27 - FLIGHT CONTROLS
Page 11
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Table 3
LH and RH Flap Bias Switches - Bypass Procedure
27- FLIGHT CONTROLS
50-3
Flap Position
Switches
MAINTENANCE
PROCEDURE
Perform the following procedure to bypass the LH and RH Flap Bias Switches:
1. Ensure power is removed from aircraft.
2. To bypass LH Wing Flap microswitches:
•
Remove 2nd (from the rear) overwing access panel on LH side, using quick release fasteners.
•
Locate terminal block JBA, remove nut from JBA8, and remove the wire marked
A8JB:W1:55:W1:JD3L. Stow wire to safely isolate the 15/45 Flap LH microswitch.
•
Remove nut from JBA7, and remove the wire marked A7JB:W1:55:W1:P1N from JBA7 and
place on JBA8. This isolates the 0 Flap LH microswitch and provides 28V to the SSU 1.
•
Replace nuts on JBA7 and JBA8 terminal blocks and replace overwing access panel.
3. To bypass RH Wing Flap microswitches:
•
Remove 2nd (from the rear) overwing access panel on LH side, using quick release fasteners.
•
Locate terminal block KB, remove nut from KB8, and remove the wire marked
8KB:W2:55:W2:KD4L. Stow wire to safely isolate the 15/45 Flap RH microswitch.
•
Remove nut from KB7, and remove the wire marked 7KB:W2:55:W2:P2N from KB7 and place
on KB8. This isolates the 0 Flap RH microswitch and provides 28V to the SSU 2.
•
Replace nuts on KB7 and KB8. terminal blocks and replace overwing access panel.
4. Power up the aircraft and check that the SSU Fault light and the STALL IDENT light are not
illuminated.
27 - FLIGHT CONTROLS
Page 12
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
28---Fuel
*
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8b - 05/21/2009
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
28 - FUEL
4. Remarks and Exceptions
20-1
Fuel Booster
Pumps
A
2
1
(M) (O) One may be inoperative
provided:
a) Inoperative pump is
deactivated.
b) Crossfeed and Wing Transfer
Valves are operative.
c) Aircraft is operated in
accordance with AFM
Supplement.
d) Low Pressure (LP) Fuel
Warning System is operative.
e) Both Wing Fuel Content
Indicators are operative.
f) Repairs are made within three
flight cycles.
20-2
Wing Transfer
Magnetic Indicator
(Series 1 Through
400 Only)
C
1
0
(O) May be inoperative provided:
a) Both Fuel Booster Pumps are
operative,
b) Wing Fuel Content Indicators
are operative, and
c) Before each departure,
TRANSFER and
CROSSFEED Valves are
verified operative.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Refer to Table 1 and do the
Fuel Booster Pump
Deactivation procedure.
2. Make sure the Crossfeed and
Wing Transfer Valves are
operative by checking fuel
gauge for movement.
3. Make sure the LP Fuel
Warning System is operative.
4. Make sure both Fuel Content
Indicators are operative.
1. Observe limitations and
procedures in AFM
Supplement “Flight With One
Pump Inoperative”.
Prior to each departure,
1. Move X FEED/TRANSFER
lever to the transfer position.
2. Sequentially, operate LH and
RH fuel booster pumps. Fuel
will transfer to the wing with
the operating fuel boost pump,
indicated by an increase in the
respective fuel contents
indicator.
28 - FUEL
Page 1
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8b - 05/21/2009 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
28 - FUEL
20-3
Fuel Transfer/
Crossfeed
Indicator (Series
600 Through
850XP Only)
4. Remarks and Exceptions
C
1
0
(O) May be inoperative provided:
a) Both Fuel Booster Pumps are
operative,
b) Wing Fuel Content Indicators
are operative, and
c) Before each departure,
TRANSFER and
CROSSFEED Valves are
verified operative.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Prior to each departure,
1. Move X FEED/TRANSFER
lever to the crossfeed and
transfer positions.
2. Sequentially, operate LH and
RH fuel boost pump. Fuel will
transfer to the wing with the
operating fuel boost pump,
indicated by an increase in the
fuel contents indicator.
3. With lever in X FEED position
and one boost pump
operation, make sure both fuel
low pressure annunciators
extinguish.
28 - FUEL
Page 2
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8b - 05/21/2009 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
28 - FUEL
20-4
Ventral Tank Fuel
Transfer Valve
4. Remarks and Exceptions
C
1
0
(M) (O) May be inoperative
provided:
a) Tank remains empty,
b) Valve is secured closed, and
c) Dorsal tank remains empty for
Series 600 and 700.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Defuel Dorsal (Series 600 and
700) and Ventral Tanks; Refer
to Aircraft Maintenance
Manual (AMM) 12-28 for
cautions.
• Select AUX FUEL
TRANSFER cock OPEN.
• Unlock and remove filler
cap(s) from tank(s) being
defuelled.
• Unscrew blanking adapter
from fuel drain valve and
install the fuel drain adaptor
assembly to tank(s).
• Off-load fuel from each tank.
• Remove the fuel drain adaptor
assembly and install blanking
adapter to fuel drain valve.
NOTE: Series 700 may be
defueled by Single
Point.
2. Set valve selector in CLOSED
position.
3. Check valve FWD RH face of
ventral tank) to make sure it is
in the CLOSED position.
4. Install ‘INOP placard adjacent
to selector handle.
1. Plan flight without ventral or
dorsal fuel.
2. Monitor refuel operations to
make sure fuel is not placed in
ventral or dorsal tanks.
28 - FUEL
Page 3
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8b - 05/21/2009 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
28 - FUEL
20-5
Ventral Tank
Transfer Light/
Annunciator
4. Remarks and Exceptions
C
1
0
(M) May be inoperative provided:
(a) Associated valve is verified
operative, and
(b) Valve position is verified after
each refueling.
C
1
0
(O) May be inoperative provided:
a) Tank remains empty, and
b) Dorsal tank remains empty for
Series 600 and 700.
20-6
Fuel Filter De-Icing
Systems (Series 1
Through 600 With
Viper Engines
Only)
1)
Automatic System
C
1
0
May be inoperative provided fuel
temperature indicator, fuel
low-pressure warning, fuel filter ice
warning, and manual system are
operative.
2)
Manual System
C
1
0
May be inoperative provided:
a) Fuel temperature indicator is
operative, and
b) Automatic fuel pump filter ice
warning Press-to-Test function
is operative.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Access ventral tank transfer
valve (FWD RH face of tank).
2. Observe valve for proper
position when selector is
moved from CLOSED to
OPEN.
Monitor refueling to make sure
Ventral and Dorsal tanks are not
refueled for Series 600 and 700.
28 - FUEL
Page 4
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8b - 05/21/2009 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
28 - FUEL
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
3)
Manual and
Automatic Systems
C
2
0
(O) May be inoperative provided;
a) Fuel temperature indicator is
operative, and
b) Fuel temperature remains at
or above 5° C.
1. Make sure the fuel
temperature indication is
normal.
2. Monitor fuel temperature
during flight and maintain 5°C
or above.
20-7
Fuel Filter Warning
Lights (Viper
Engine Only)
C
2
1
(O) One may be inoperative
provided automatic fuel filter
de-icing system is operative and is
used during flight.
1. Select AUTO filter deice ON.
2. Press affected warning light
and make sure the filter deice
pump runs.
3. Leave filter deice in AUTO.
22-1
Pressure Fueling
System
1)
(Series 400 through
700) (If Installed)
C
1
0
(M) (O) May be inoperative
provided:
a) Failure of the fueling system is
verified not be due to fuel pipe
leakage,
b) Both refueling vent valves,
master refuel valve, and
refueling valves are closed,
and
c) Overwing refueling procedure
is established and used.
1. Inspect external lower
fuselage for evidence of fuel
leakage.
2. Defuel Dorsal and Ventral fuel
tanks.
3. Make sure both refueling vent
valves, master refuel valve,
and dorsal and ventral
refueling valves are closed
(Refer to Pressure Refueling
System Inactivation
Procedure, Table 2.)
1. Follow Overwing Fueling
refueling procedures.
2. Plan flight for Dorsal and
Ventral fuel tanks empty.
28 - FUEL
Page 5
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8b - 05/21/2009 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
28 - FUEL
4. Remarks and Exceptions
2)
(Series 750, 800,
800XP, 850XP and
900XP)
C
1
0
(M) (O) May be inoperative
provided:
a) Failure of the fueling system is
verified not be due to fuel pipe
leakage.
b) Master refueling valve and all
tank refueling valves are
closed, and
c) Overwing refueling procedure
is established and used.
22-2
Pressure Refuel
Blanking Cap
C
1
0
(O) May be inoperative provided
master refuel valve is verified
closed.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Inspect external lower
fuselage for evidence of fuel
leakage.
2. Make sure the master refuel
valve and ventral refueling
valves are closed (Refer to
Table 2 steps 2 and 4 for
details).
1. Follow Overwing Fueling
refueling procedures.
2. Plan flight for Ventral fuel tank
empty.
Prior to each flight, make sure the
MASTER REFUEL selector is
CLOSED.
28 - FUEL
Page 6
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8b - 05/21/2009 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
28 - FUEL
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
42-1
Wing Tank Fuel
Content Indicators
B
2
1
(O) One may be inoperative
provided:
a) Before departure, fuel quantity
in associated tank is verified
by an alternate means,
b) All remaining fuel system
components are operative,
c) FUEL FLOW/FUEL USED
COUNTER/ FUEL
TOTALIZER indicators are
operative,
d) Aircraft remains within one (1)
hour flying time from a
suitable airport, and
e) Alternate procedures for
monitoring enroute fuel
consumption are established
and used.
1. Make sure the fuel in the
associated wing tank is full by
checking wing filler cap, or
2. Airplane is fueled with a
known quantity from an empty
condition.
3. All remaining fuel system
components are operative.
4. Aircraft must remain within
one (1) hour flying time of a
suitable airport at all times.
5. Fuel Used Counter/Fuel
Totalizer indicators are used
to determine remaining fuel.
42-2
Fuel Used
Counter(s)/Fuel
Totalizer(s)
C
-
0
(O) May be inoperative provided:
a) Wing Tank Content Indicators
are operative, and
b) Alternate procedures for
monitoring enroute fuel
consumption are established
and used.
1. Make sure the wing fuel
contents indicators are
operative.
2. Regularly compute fuel
remaining or check FMS for
fuel remaining, or
3. Compute fuel remaining
utilizing Aircrew Manual
Performance charts.
28 - FUEL
Page 7
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8b - 05/21/2009 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
28 - FUEL
43-1
Ventral Tank
“EMPTY/FULL”
Indicator
4. Remarks and Exceptions
C
1
0
(M) (O) May be inoperative
provided:
a) Ventral Tank is verified to be
empty before each departure,
and
b) Procedures are established
and used to make sure fuel is
not transferred into Ventral
Tank during flight.
43-2
Dorsal Tank
“Empty/Full”
Indicator (Series
600 and 700, Only)
C
1
0
(M) (O) May be inoperative
provided:
a) Dorsal Tank is verified empty
before each departure, and
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Defuel Ventral Tank IAW AMM Refuel operations are monitored to
make sure fuel is not placed in the
Chapter 12.
ventral tank.
2. Check that Ventral Tank
EMPTY/FULL indicator is
extinguished.
3. If Ventral Tank EMPTY/FULL
indicator is not extinguished,
disconnect Ventral Tank Float
Switch, bag and stow
connector.
Make sure that dorsal tank is
drained IAW AMM procedures.
Refuel operations are monitored to
make sure fuel is not placed in the
dorsal tank.
b) Procedures are established
and used to make sure fuel is
not transferred into Dorsal
Tank during flight.
28 - FUEL
Page 8
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8b - 05/21/2009 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
28 - FUEL
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
43-3
Low VMO Audible
Warning System
1)
Series 3A/RA, 3B/
RA Through 400,
800, 800XP, 850XP
and 900XP Only
C
1
0
Make sure that ventral tank is
(M) (O) May be inoperative
drained IAW AMM procedures.
provided:
a) Ventral tank is verified empty
before each departure, and
b) Procedures are established
and used to make sure fuel is
not transferred into Ventral
Tank during flight.
1. If aircraft has not been
refueled since previous flight,
make sure ventral fuel was
transferred from the tank on
previous flight.
2. If aircraft has been refueled
since previous flight, make
sure the ventral tank is empty
by checking sump drains.
Ventral tank must be Single
Point defueled and drained if
fuel is present at sump.
2)
Series 600 and 700,
Only
C
1
0
Make sure that dorsal and ventral
(M) (O) May be inoperative
tanks are drained IAW AMM
provided:
a) Ventral and Dorsal Tanks are procedures.
verified empty before each
departure, and
b) Procedures are established
and used to make sure fuel is
not transferred into Ventral
Tank or Dorsal Tank during
flight.
1. If aircraft has not been
refueled since previous flight,
make sure dorsal and ventral
fuel was transferred from
tanks on previous flight.
2. If aircraft has been refueled
since previous flight, make
sure the dorsal tank is empty
which requires the ventral
tank to be empty also. Both
the ventral and dorsal tank
must be defueled and drained
if fuel is present at sump.
28 - FUEL
Page 9
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8b - 05/21/2009 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
28 - FUEL
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Make sure both wing fuel
1. Drain any fuel from Vent
indications are normal.
Surge Tanks.
2. Quantity drained must be less
than one (1) gallon.
C
2
0
(M) (O) May be inoperative
provided:
a) Both fuel content indicators
are operative, and
b) Vent valves are operative.
Viper Engine Only
C
1
0
(O) May be inoperative provided:
a) Fuel filter ice warning system
is operative,
b) Fuel filter de-icing system is
operative,
c) OAT indicator is operative,
and
d) Fuel temperature AFM
Limitations are applied.
1. Prior to each flight with fuel
pumps OFF, select AUTO fuel
filter deicing.
2. Press FILTER TEST and ENG
1/ENG 2 LO PRESS and
FUEL annunciators shall
extinguish.
3. Make sure the OAT indicator
is operative.
4. Do not operate where OAT is
below minimum AFM fuel
temperature limit.
2)
TFE-731 Engines
Only
C
1
0
(O) May be inoperative provided:
a) OAT indicator is operative,
and
b) Fuel temperature AFM
Limitations are applied.
1. Make sure the OAT indicator
is operative.
2. Do not operate where OAT is
below minimum AFM fuel
temperature limit.
45-2
***
Fuel Management
Computer System
(Garrett GEMS
System)
C
-
0
43-4
Fuel Vent Surge
Tank Indicators
(Series 3A/RA, 3B/
RA Through 600
Only)
45-1
Fuel Temperature
Indicator
1)
28 - FUEL
Page 10
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Table 1
Fuel Booster Pump Deactivation
Left Hand Pump Deactivation:
On overhead panel ‘CG’’, locate switch in the Engine section labeled ‘L PUMP’ and select center position OFF.
On Main Distribution Panel DA/D, open and safety tag the following breakers:
B28
Fuel Pump CTL LH
Grid Reference C8
B27
Fuel Pump LH
Grid Reference C7
B26
STBY Fuel Pump LH
Grid Reference C6
Right Hand Pump Deactivation:
On overhead panel ‘CG’’, locate switch in the Engine section labeled ‘R PUMP’ and select center position OFF.
On Main Distribution Panel DA/D, open and safety tag the following breakers:
B38
Fuel Pump CTL RH
Grid Reference D8
B37
Fuel Pump RH
Grid Reference D7
B36
STBY Fuel Pump RH
Grid Reference D6
Table 2
Pressure Refueling System Inactivation
28 - FUEL
22-1
1)
Pressure Fueling MAINTENANCE
System
PROCEDURES
Series 400 though 1. Make sure the Refuel Vent Valve is closed.
700, Only (If
a) Make sure the MASTER switch on the refuel control panel is selected OFF and the wing VENT
Installed)
valve indicators show SHUT. If indication is not present,
b) On panel DA/D, open circuit breakers REFUEL MASTER VALVE and REFUEL VENTS.
c) Remove the wing access panel, outboard of rib 13
d) Make sure the indicator on the actuator is horizontal.
e) Disconnect and stow the electrical connector from the valve.
28 - FUEL
Page 11
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Table 2
Pressure Refueling System Inactivation (Continued)
28 - FUEL
22-1
2)
Pressure Fueling MAINTENANCE
System
PROCEDURES
Series 750, 800,
2. Make sure the Master Refuel Valve is closed.
800XP, 850XP and
a) Make sure the MASTER switch on the refuel control panel is selected OFF and Refuel Valve
900XP Only
indicators show SHUT. If indication is not present,
b) Make sure the landing gear ground lock pins are installed.
c) Close the crossfeed and both low pressure valves (cocks).
d) Close the auxiliary fuel transfer lever.
e) Make sure the MASTER, DORSAL and VENTRAL REFUEL switches are selected OFF.
f) Isolate the electrical circuits of (4); refer to REFUEL SYSTEM CIRCUIT POWER SUPPLY
DETAILS, Table 3.
g) Open left main gear door.
h) Remove the rear inboard sidewall panel in left main landing gear wheel well.
i) Make sure the indicator on the actuator is aligned with the marks.
j) Disconnect and stow the electrical connector from the valve.
3)
Series 1-700 Only
3. Make sure the Dorsal Tank Refuel Valve is closed (For Series 1-700 Only).
a) Defuel dorsal tank (Chapter 12, SERVICING - FUEL).
b) Close No. 1 engine low pressure valve (cock).
c) Make sure all switches on the refuel control panel are OFF and the MASTER VALVE is indicated
SHUT and that the Dorsal Refuel Valve indicator shows SHUT. If indication is not present,
d) On panel DA/D, open circuit breakers REFUEL DORSAL & VENTRAL, and REFUEL MASTER
VALVE.
e) Gain access to the rear equipment bay; the valve is on the left side of the bay, just forward of the
engine beam.
f) Make sure that the position indicator shows closed.
g) Disconnect and stow the electrical plug from the valve.
28 - FUEL
Page 12
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Table 2
Pressure Refueling System Inactivation (Continued)
28 - FUEL
22-1
Pressure Fueling MAINTENANCE
System
PROCEDURES
4. Make sure the Ventral Tank Transfer Valve is closed.
a) Make sure the MASTER switch on the refuel control panel is selected OFF and that the Ventral
Valve indicator shows SHUT. If indication is not present,
b) Close the auxiliary fuel transfer valve.
c) Defuel the ventral tank (Chapter 12, SERVICING - FUEL).
d) Make sure all switches on the refuel panel DB are OFF and indicated as SHUT.
e) Close No.2 engine low-pressure fuel valve (cock).
f) On panel DA/D open circuit breakers REFUEL DORSAL AND VENTRAL and REFUEL
MASTER VALVE.
g) Make sure the landing gear locking pins are installed (Chapter 10, PARKING AND MOORING).
h) Release hydraulic system pressure (Chapter 29, HYDRAULIC - MAIN SYSTEM).
i) Lower left main landing gear door and install door jack clamp (Chapter 32, LANDING GEAR MAIN GEAR FAIRINGS AND DOORS).
j) Remove inboard access panel in rear wall of left main wheel bay to gain access to refuel valve
on ventral tank forward wall.
k) Operate the manual override lever on the valve to the closed position.
l) Disconnect and stow the electrical connector from the valve.
Reference the REFUEL SYSTEM CIRCUIT POWER SUPPLY DETAILS, Table 3.
28 - FUEL
Page 13
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Table 3
Refuel System Circuit Power Supply Details
Equipment
Supply
Panel DA
Master Refuel Valve
C.B.
Ident
PE (a)
Sub Panel D
REFUEL VENT
PE (a)
Sub Panel D
REFUEL MASTER VALVE
PE (a)
Sub Panel E
REFUEL CONTROL
PE (a)
Sub Panel E
WING O’FLOW (Overflow)
Wing Refuel Valve L & R
PE (a)
Sub Panel D
REFUEL WING
Dorsal and Ventral Refuel Valve
PE (a)
Sub Panel D
REFUEL DORSAL & VENTRAL
28 - FUEL
Page 14
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM
EQUIPMENT LIST
29---Hydraulic Power
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
29 - HYDRAULIC POWER
30-1
L/R HYD LO FLOW
Annunciators
(Viper Engines,
Only)
4. Remarks and Exceptions
C
2
1
(O) One may be inoperative
provided:
a) Associated hydraulic pump is
operative,
b) Main hydraulic supply
pressure indicator is
operative,
c) EMRG HYD LO PRESS
annunciator is operative,
d) Associated engine is started
first to verify pressure buildup
before each departure.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Confirm HYD LO PRESS
indicator is operative.
2. Prior to each departure, start
the engine on the affected
side first and confirm a
pressure increase on the main
hydraulic pressure indicator.
3. If HYD LP lamp illuminates in
flight, follow EMERGENCY
BRAKE SUPPLY FAILURE
drill.
29 - HYDRAULIC POWER
Page 1
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM
EQUIPMENT LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
29 - HYDRAULIC POWER
30-2
HYD LO PRESS 1
or 2 Annunciators
(TFE-731 Engines,
Only)
4. Remarks and Exceptions
C
2
1
(O) One may be inoperative
provided:
a) Associated hydraulic pump is
operative,
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Prior to each departure,
•
b) Main hydraulic supply
pressure indicator is
operative.
c) EMRG BRK LO PRESS
annunciator is operative, and
d) Associated engine is started
first to verify pressure buildup
before each departure.
Prior to engine start, select
Emergency Brake and
operate brake pedals until
EMER BRK LO PRESS
annunciator illuminates.
Caution
Airplane must be chocked during
engine start.
•
Start the associated engine
first and observe pressure
buildup on the main hydraulic
pressure indicator.
•
Observe EMER BRK LO
PRESS annunciator OFF at
2250 to 2450 psi.
2. Series 1 thru 700: If brake
EMERG BRK LO PRESS
warning light illuminates in
flight, follow EMERGENCY
BRAKE SUPPLY FAILURE
drill.
29 - HYDRAULIC POWER
Page 2
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM
EQUIPMENT LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
29 - HYDRAULIC POWER
30-3
Combined Brakes
and SUPPLY
Pressure Gauge
1)
BRAKE Pressure
Indicators
30-4
Accumulator
Pressure
Indicators
30-5
AUX HYD
LO LEVEL
Annunciator
(Series 3 Through
900XP, Only)
4. Remarks and Exceptions
C
2
1
(O) One may be inoperative
provided before each departure:
a) Main hydraulic SUPPLY
indication is within normal
limits,
b) Emergency Brake Pressure
Indicators/Annunciators are
verified operative, and
c) Normal braking is confirmed
independently for left and right
brakes.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Prior to each departure:
• Confirm Supply Pressure
indication is normal.
• Prior to taxi, select EMRGY
wheel brake and confirm both
1 and 2 WHEEL BRAKE
EMRGY annunciators
illuminate.
2. Confirm normal braking
independently for left and right
brakes.
Deleted, Rev. 3.
C
1
0
(O) May be inoperative provided
fluid quantity is visually verified to
be adequate before each
departure.
1. Gain access to Nose Landing
Gear (NLG) wheel well.
2. Visually confirm Auxiliary AUX
HYD Reservoir has adequate
quantity prior to each
departure.
29 - HYDRAULIC POWER
Page 3
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM
EQUIPMENT LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
29 - HYDRAULIC POWER
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
30-6
Accumulator
Pressure
Indicators (Main
and Emergency
Brake Only)
C
2
1
(O) One may be inoperative
provided:
a) Combined BRAKES and
SUPPLY Pressure Gauge is
operative, and
b) Associated accumulator
pre-charge is verified
adequate before the first flight
of each day.
1. Perform the following prior to
the first flight of each day:
• With engines not operating,
check hydraulic pressure
indicator pressure to be
~2,300 PSI.
• Operate brakes five (5) times
and confirm negligible change
in hydraulic pressure.
2. Select WHEEL BRAKE lever
to EMERGY and operate
brakes 5 times. Confirm
EMERG BRAKE annunciators
illuminate.
30-7
Thrust Reverser
Accumulator
Pressure Indicator
(Series 800, if
installed, and 750,
800XP, 850XP and
900XP)
C
1
0
(O) May be inoperative provided
before each departure:
a) Thrust Reversers are verified
operative, and
b) Main Hydraulic Accumulator
pressure is verified normal.
NOTE: Thrust Reversers may
be inoperative with
loss of main hydraulic
system pressure.
1. Prior to each departure,
confirm Thrust Reversers are
operative, and
2. Confirm Main Hydraulic
Accumulator pressure is
normal.
NOTE: Thrust Reversers may
be inoperative with
loss of main hydraulic
system pressure.
29 - HYDRAULIC POWER
Page 4
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM
EQUIPMENT LIST
30---Ice and Rain Protection
w
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
30 - ICE AND RAIN
PROTECTION
10-1
TKS Airframe
De-icing System
10-2
WING/TAIL
ANTI-ICE Control
Switches
1)
WING/TAIL TIME
Switch
a)
(Series 1 Through
400, Only)
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
C
1
0
May be inoperative provided the
airplane is not operated in known or
forecast icing conditions.
C
1
0
(O) May be inoperative provided:
a) WING/TAIL ON/OFF Switch is
verified operative,
b) WING/TAIL ON/OFF Switch is
verified OFF when not in use
(no audible sound from
Anti-Icing Pump), and
c) Alternate procedures for
accomplishing timing are
established and used.
1. WING/TAIL ON/OFF switch is
confirmed operative.
2. Confirm the switch is OFF
when not in use by listening
for operation of the pump.
3. Use clock or other means to
time the use of TKS.
C
1
0
(O) May be inoperative provided:
a) WING/TAIL ANTI-ICE System
is verified OFF (no audible
sound from Anti-Icing Pump),
and
b) Airplane is not operated in
visible moisture or known or
forecast icing conditions.
1. WING/TAIL ANTI-ICE System
is confirmed OFF (no audible
sound from Anti-Icing Pump).
2. Plan each flight to avoid
known or forecast icing
conditions along entire route
including alternate
destination.
Plan flight to avoid known or
forecast icing conditions along
intended and alternate flight path.
30 - ICE AND RAIN PROTECTION
Page 1
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM
EQUIPMENT LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
30 - ICE AND RAIN
PROTECTION
b)
2)
Time Function
(Series 600 Through
900XP and 750
Only)
WING/TAIL ON/OFF
Switch (Series 1
Through 400 Only)
4. Remarks and Exceptions
C
1
0
(O) May be inoperative provided:
a) System is verified OFF when
not is use,
b) Priming can be accomplished,
and
c) An alternate timing method is
established and used.
C
1
0
May be inoperative provided
airplane is not operated in known or
forecast icing conditions.
C
1
0
(O) May be inoperative provided:
a) WING/TAIL ANTI-ICE System
is verified OFF when not in
use (no audible sound from
Anti-Icing Pump), and
b) WING/TAIL TIME Switch is
verified to operate normally,
and is used for Anti-Icing.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Confirm the system is off
when not in use by listening
for operation of the pump.
2. Confirm that system can be
primed.
3. Check ANTICE LO PRESS
annunciator OFF 15 seconds
after selecting airframe anti
ice ON.
4. Use clock or other means to
time the use of TKS.
Plan each flight to avoid known or
forecast icing conditions along
entire route including alternate
destination.
1. WING/TAIL ANTI-ICE System
is confirmed OFF (no audible
sound from Anti-Icing Pump).
2. Confirm normal operation of
the WING/TAIL TIME Switch
by selecting ON and
confirming TKS flow.
3. Use WING/TAIL TIME Switch
for selecting TKS ON for
anti-icing.
30 - ICE AND RAIN PROTECTION
Page 2
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM
EQUIPMENT LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
30 - ICE AND RAIN
PROTECTION
10-3
10-4
TKS Quantity
Indication System
ANTI-ICE
LO PRESS
Annunciator
(Series 750, 800,
800XP, 850XP and
900XP Only)
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. WING/TAIL ANTI-ICE System
is confirmed OFF (no audible
sound from Anti-Icing Pump).
2. Plan each flight to avoid
known or forecast icing
conditions along entire route
including alternate
destination.
C
1
0
(O) May be inoperative provided:
a) WING/TAIL ANTI-ICE System
is verified OFF (no audible
sound from Anti-Icing Pump),
and
b) Airplane is not operated in
visible moisture or known or
forecast icing conditions.
C
1
0
(O) May be inoperative provided
fluid quantity is verified adequate
for each flight.
Prior to each departure, confirm
TKS quantity adequate for intended
and alternate flight path.
C
1
0
May be inoperative provided
airplane is not operated in known or
forecast icing conditions.
Plan each flight to avoid known or
forecast icing conditions along
entire route including alternate
destination.
C
1
0
(O) May be inoperative provided:
a) Fluid delivery system is
operative, and
b) Quantity indication system is
operative.
C
1
0
May be inoperative provided
airplane is not operated in known or
forecast icing conditions.
1. Confirm that TKS system is
operative, and
2. Confirm that TKS quantity
indication is operative.
Plan each flight to avoid known or
forecast icing conditions along
entire route including alternate
destination.
30 - ICE AND RAIN PROTECTION
Page 3
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM
EQUIPMENT LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
30 - ICE AND RAIN
PROTECTION
10-5
ANTI-ICE LO QTY
Annunciator
(Series 750, 800,
800XP, 850XP and
900XP Only)
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
C
1
0
(O) May be inoperative provided
fluid quantity is verified adequate
for each flight.
Prior to each departure, confirm
fluid quantity adequate for intended
and alternate flight path.
C
1
0
May be inoperative provided
airplane is not operated in known or
forecast icing conditions.
Plan each flight to avoid known or
forecast icing conditions along
entire route including alternate
destination.
Plan flight for normal TKS fluid
quantity only.
10-6
***
Auxiliary TKS
System
D
1
0
(O) May be inoperative provided
alternate procedures are
established and used.
20-1
Engine Inlet
Anti-icing Systems
(TFE-731 Engined
Aircraft, Only)
C
2
1
(O) One may be inoperative ON
provided:
a) Associated Engine Inlet
Anti-Ice (ENG A/ICE)
Annunciator is operative when
ENG ANTICE for that engine
is selected,
b) Takeoff and Landing field
temperatures do not exceed
+10 ° C, and
c) Aircraft Flight Manual (AFM)
Engine Anti-Ice ON
Performance and Limitations
are observed.
1. Select ENG A/ICE ON for
affected engine and confirm
normal annunciation.
2. Plan flight such that takeoff
and landing temperature does
not exceed 10° C for intended
flight including alternates.
3. Use Anti-Ice ON takeoff and
landing performance data.
4. Monitor engine ITT during
flight.
30 - ICE AND RAIN PROTECTION
Page 4
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM
EQUIPMENT LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
30 - ICE AND RAIN
PROTECTION
20-2
Engine Inlet
Anti-Ice Indicators/
Annunciators
4. Remarks and Exceptions
C
2
1
(O) One may be inoperative
provided:
a) Airplane is not operated in
visible moisture or in known or
forecast icing conditions,
b) Takeoff and Landing field
temperature do not exceed
+10 ° C, and
c) AFM Engine Anti-Ice ON
Performance and Limitations
are observed.
C
2
1
(M) (O) One may be inoperative
provided:
a) Associated anti-ice valve is
verified closed, and
b) Airplane is not operated in
visible moisture or in known or
forecast icing conditions.
C
2
1
(O) One may be inoperative
provided:
a) All power indicating
instruments for associated
engine are operative, and
b) Associated valve operates
normally.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Plan flight to avoid visible
moisture and known or
forecast icing conditions for
icing conditions for the
intended flight including
alternates.
2. Plan flight such that takeoff
and landing temperature does
not exceed 10° C for intended
flight including alternates.
3. Use Anti-Ice ON takeoff and
landing performance data.
4. Monitor engine Interstage
Turbine Temperature (ITT)
during flight.
WARNING
Do not reach inside engine lip
with engine running.
Plan flight to avoid visible moisture
and known or forecast icing
conditions for icing conditions for
the intended flight including
alternates.
With engine running, verify that inlet
lip is not heated.
1. Confirm that all engine
indicators operate normally.
2. Confirm that ITT EGT
increases when anti-ice is
selected ON.
30 - ICE AND RAIN PROTECTION
Page 5
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM
EQUIPMENT LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
30 - ICE AND RAIN
PROTECTION
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
20-3
MWS ‘ENG ICE
PROT ON’ White
Annunciator
(Series 600 and
700, Only)
C
1
0
(O) May be inoperative provided:
a) “ENG A/ICE” white
annunciators on overhead
panel are verified operative,
and
b) Alternate procedures for
determining operation of
Engine Anti-Ice are
established and used.
1. With engines running, Select
ENG ICE PROT ON and
confirm ITT rise while selected
and white annunciator lights in
the overhead CG panel are
on.
2. Select ENG ICE PROT OFF.
20-4
MWS “ICE PROT
SELECTED” White
Annunciator
(Series 750, 800,
800XP, 850XP and
900XP only)
C
1
0
(O) May be inoperative provided
“ENG A/ICE” amber annunciators
are verified operative.
1. With the engine off and the
ENG ANTICE ON confirm
(amber) ENG A/ICE
annunciator illuminates dim.
After 2 seconds it should
illuminate bright.
2. With the engine running and
the ENG ANTICE ON confirm
(amber) ENG A/ICE
annunciator illuminates dim
and then extinguishes as the
air pressure rises.
30 - ICE AND RAIN PROTECTION
Page 6
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM
EQUIPMENT LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
30 - ICE AND RAIN
PROTECTION
30-1
Pitot Probe/Pitot
Mast Heaters
4. Remarks and Exceptions
B
2
1
(O) One may be inoperative
provided:
a) Flight is conducted in day
VMC flight conditions only,
and
b) Airplane is not operated in
visible moisture, or in known
or forecast icing conditions.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Conduct flight in day VMC
only, and
2. Avoid flight in visible moisture,
and
3. Plan flight to avoid known or
forecast icing conditions along
entire route including
alternates.
NOTE
RVSM is not authorized.
30-2
Pitot Ammeters
(Series 1 Through
400 With SB
34-140, Or Mod.
252733 Installed,
Only)
C
2
0
(O) May be inoperative provided:
a) Pitot/Mast Heater Fail
annunciators are verified
operative before each
departure, and
b) Alternate procedures are
established and used.
1. Briefly select PITOT HEAT
ON and confirm pitot probe
has heated for affected
probe(s) prior to each
departure.
2. Select L & R Pitot Heat OFF
and confirm that PITOT HTR
FAIL annunciator(s) is (are)
operating.
3. Confirm that Pitot Heaters are
on prior to each departure.
30 - ICE AND RAIN PROTECTION
Page 7
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM
EQUIPMENT LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
30 - ICE AND RAIN
PROTECTION
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
30-3
Pitot Ammeter &
Selector (Series
600 and 700 With
SB 34-140, Or Mod.
252733 Installed,
Or 750, 800, 800XP,
850XP and 900XP
Only)
C
-
0
(O) May be inoperative provided
Pitot/Mast Heater Fail Lights are
confirmed to operate normally
before each departure.
1. Select L & R Pitot Heat OFF
and confirm that Pitot/Mast
Heater Fail annunciator(s) is
(are) operative.
2. Confirm Pitot Heaters are on
prior to each departure.
30-4
Pitot/Mast Heater
FAIL Light(s)/
Annunciator(s)
(Series 1 Through
700 With SB
34-140, Or Mod.
252733 Installed,
and 750, 800,
800XP, 850XP and
900XP Only)
B
-
0
(O) May be inoperative provided:
a) Associated Pitot Heating
System is verified operative
before each departure,
b) Associated Pitot Heat
Ammeter is operative, and
c) Alternate procedures for
monitoring Pitot Heater
function in icing conditions are
established and used.
1. Select Pitot heat ON and
check ammeter for normal
current for both left and right
Pitot Probes prior to each
departure.
2. Monitor Pitot Heater Ammeter
frequently when in icing
conditions.
30 - ICE AND RAIN PROTECTION
Page 8
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM
EQUIPMENT LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
30 - ICE AND RAIN
PROTECTION
30-5
Static Plate
Heaters (Series
700, if installed,
750, 800, 800XP,
850XP and 900XP
Only)
4. Remarks and Exceptions
B
2
1
(O) One may be inoperative
provided:
a) Enroute operations do not
require operation of both static
plate heaters,
b) Flight is conducted in day
VMC flight conditions only,
and
c) Airplane is not operated in
visible moisture, or in known
or forecast icing conditions.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Conduct flight in day VMC
only, and
2. Avoid flight in visible moisture,
and
3. Plan flight to avoid known or
forecast icing conditions along
entire route including
alternates.
4. Plan flight to avoid rush
operations.
NOTE
RVSM is not authorized
30-6
Stall Vane Heaters
(Series 750, 800,
800XP, 850XP and
900XP Only)
B
2
1
(O) One may be inoperative
provided:
a) VANE HTR FAIL Annunciator
for operative Stall Vane
Heater is operative,
b) Flight is conducted in day
VMC flight conditions only,
and
c) Airplane is not operated in
visible or forecast icing
conditions.
1. Confirm VANE HTR FAIL
Annunciator for operative Stall
Vane Heater is operative.
2. Conduct flight in day VMC
only, and
3. Avoid flight in visible moisture,
and
4. Plan flight to avoid known or
forecast icing conditions along
entire route including
alternates.
30 - ICE AND RAIN PROTECTION
Page 9
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM
EQUIPMENT LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
30 - ICE AND RAIN
PROTECTION
30-7
L and R VANE HTR
FAIL Annunciators
(Series 750, 800,
800XP, 850XP and
900XP Only)
40-1
Windscreen
Heating System
1)
Series 1 Through
700 Series Only
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
B
2
1
(O) One may be inoperative
provided:
a) Both Stall Vane Heaters are
verified operative before each
departure,
b) Flight is conducted in day
VMC conditions, only, and
c) Airplane is not operated in
visible moisture, or in known
or forecast icing conditions.
1. Prior to each departure, using
caution to avoid burns,
confirm that both vane heaters
are operative, and
2. Plan flight to be performed in
day VMC conditions only, and
3. Avoid flight in visible moisture
and known or forecast icing
conditions.
C
2
0
(O) May be inoperative provided:
a) Airplane is operated in
accordance with AFM
Limitations, and
b) Windscreen fluid de-icing
system is installed and
operative.
1. Refer to Bird Strike Speed in
AFM Limitations for
temperature and speed
limitations.
2. Confirm normal operation of
the windscreen de-icing
system.
C
2
0
(O) May be inoperative provided:
a) Airplane is operated in
accordance with AFM
Limitations, and
b) Airplane is not operated in
known or forecast icing
conditions.
1. Refer to Bird Strike Speed in
AFM Limitations for
temperature and speed
limitations.
2. Plan flight to avoid known or
forecast icing conditions along
entire route including
alternates.
30 - ICE AND RAIN PROTECTION
Page 10
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM
EQUIPMENT LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
30 - ICE AND RAIN
PROTECTION
2)
Series 750, 800,
800XP, 850XP and
900XP Only
4. Remarks and Exceptions
C
4
3
Heating to one side screen “B” only
may be inoperative.
C
4
2
(O) Both “B” screens may be
inoperative provided airplane is not
operated in known or forecast icing
conditions.
C
4
0
(O) May be inoperative provided:
a) Airplane is operated in
accordance with AFM
Limitations, and
b) Airplane is not operated in
known or forecast icing
conditions.
40-2
Windscreen
Overheat Lights/
Annunciators
C
-
0
May be inoperative provided:
a) Affected windscreen heat
system in not used,
b) Airplane is not operated in
known or forecast icing
conditions, and
c) AFM take-off temperature and
airspeed limitations are
observed.
40-3
Windscreen Wiper
Systems (Series 1
Through 700 Only)
C
2
0
May be inoperative provided
airplane is not operated in
precipitation within 5 nautical miles
of the airport of takeoff or intended
landing.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Plan flight to avoid known or
forecast icing conditions along
entire route including alternates.
1. Refer to Bird Strike Speed in
AFM Limitations for
temperature and speed
limitations.
2. Plan flight to avoid known or
forecast icing conditions along
entire route including
alternates.
30 - ICE AND RAIN PROTECTION
Page 11
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM
EQUIPMENT LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
30 - ICE AND RAIN
PROTECTION
4. Remarks and Exceptions
1)
Park and Slow
Speed Function
C
-
0
May be inoperative without an
operational restriction provided
blade(s) can be positioned in a
location that will not obstruct
forward vision.
80-1
Ice Detection
System
C
1
0
(O) May be inoperative provided:
a) Airplane is not operated at
night, and
b) Alternate procedures are
established and used for
detection of icing and
activation of airplane anti-icing
equipment.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Conduct flight in day only, and
2. Avoid flight in visible moisture,
and
3. Activate anti-icing systems
when near or in visible
moisture below 40° F OAT.
30 - ICE AND RAIN PROTECTION
Page 12
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
31---Indicating/Recording Systems
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 7 - 09/07/2007
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
31 - INDICATING/
RECORDING SYSTEMS
4. Remarks and Exceptions
20-1
Clocks
C
-
1
As required by FAR.
30-1
Flight Data
Recorder (FDR)
System
D
-
-
Any in excess of those required by
FAR may be inoperative.
A
-
0
May be inoperative provided:
a) Cockpit Voice Recorder
(CVR), is operative,
b) Airplane is not dispatched
from a designated airport as
listed in the operator’s MEL
unless:
• The FDR failure occurs after
pushback but before takeoff,
or
• FDR repair was attempted but
was not successful.
c) In those cases where repair is
attempted but not successful,
the aircraft may be dispatched
on a flight or series of flight
until the next designated
airport where repair must be
accomplished before
dispatch, and
d) Repairs are made within three
flight days.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
31 - INDICATING/RECORDING SYSTEMS
Page 1
Nov.2007
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 7 - 09/07/2007 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
31 - INDICATING/
RECORDING SYSTEMS
4. Remarks and Exceptions
1)
FDR Recording
Parameters
Required by FAR
A
-
-
May be inoperative provided:
a) Cockpit Voice Recorder
operates normally, and
b) Repairs are made within 20
calendar days.
2)
FDR Recording
Parameters Not
required by FAR
A
-
-
May be inoperative provided repairs
are made prior to the completion of
the next heavy maintenance visit.
(Aircraft operated by
other than Air
Carrier or
Commercial
Operator certificate
holder)
A
-
0
May be inoperative provided repairs
are made in accordance with
applicable FAR’s.
40-1
***
Flight Hour Meter
C
1
0
(O) May be inoperative provided
alternate procedures are
established and used.
50-1
Dual Filament
Annunciator(s)
1)
Filament
C
-
-
One filament in each annunciator
may be inoperative.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Record total flight time and flight
cycles per flight in aircraft records.
31 - INDICATING/RECORDING SYSTEMS
Page 2
Nov.2007
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 7 - 09/07/2007 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
31 - INDICATING/
RECORDING SYSTEMS
60-1
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Transfer/Reversion
Switch Lights
(Collins Pro Line 21)
1)
CDU REV Transfer
Switch Lights
C
4
0
Switch backlight and switch
annunciation lights, left and right,
may be inoperative provided switch
operates normally.
2)
PFD REV Transfer
Switch Lights
C
4
0
Switch backlight and switch
annunciation lights, left and right,
may be inoperative provided switch
operates normally.
3)
Multifunction
Display Reversion
(MFD REV) Transfer
Switch Lights
C
4
0
Switch backlight and switch
annunciation lights, left and right,
may be inoperative provided switch
operates normally.
4)
Right (R) Primary
Flight Display (PFD)
Engine (ENG)
SELECT Switch
Lights
C
2
0
Switch backlight and switch
annunciation lights may be
inoperative provided switch
operates normally.
31 - INDICATING/RECORDING SYSTEMS
Page 3
Nov.2007
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
32---Landing Gear
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 7 - 09/07/2007
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
32 - LANDING GEAR
MAINTENANCE
PROCEDURES
4. Remarks and Exceptions
D
2
OPERATIONAL
PROCEDURES
32-1
Main Landing Gear
Door Latch
Springs
0
40-1
Maxaret Unit
(Anti-Skid System)
60-1
Gear Down and
Locked Indicators
1)
Primary Indicators
B
3
2
(O) One indicator may be
inoperative provided all standby
indicators operate normally.
Confirm all standby indicators are
normal.
2)
Standby Indicators
B
3
2
(O) One indicator may be
inoperative provided all primary
indicators operate normally.
Confirm all primary indicators are
normal.
60-2
Gear Unlocked
Indications
Deleted, Rev. 3.
Deleted, Revision 6. Relief already
provided for in item 31-50-1.
32 - LANDING GEAR
Page 1
Nov.2007
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
33---Lights
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
33 - LIGHTS
4. Remarks and Exceptions
10-1
Cockpit/Flight
Deck/Flight
Compartment and
Instrument
Lighting Systems
C
-
-
Individual lights may be inoperative
provided remaining lights are:
a) Sufficient to clearly illuminate
all required instruments,
controls, and devices for
which they are intended,
b) Positioned so that direct rays
are shielded from flight crew
members’ eyes, and
c) Lighting configuration and
intensity is acceptable to the
flightier.
10-2
CAGS Warning
Light Systems
(Series 1 Though
400 Only)
C
2
1
One flasher may be inoperative
provided all remaining
system-warning lights are
operative.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
NOTE
Not required for inoperative
systems.
10-3
Master Warning
Light Systems
(Series 600
Through 850XP
Only)
C
2
1
One flasher may be inoperative
provided all remaining
system-warning lights are
operative.
NOTE
Not required for inoperative
systems.
33 - LIGHTS
Page 1
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
33 - LIGHTS
20-1
Cabin Interior
Light System
4. Remarks and Exceptions
C
-
-
(O) Individual lights may be
inoperative provided:
a) Cabin Emergency Lighting is
operative.
b) Sufficient Lighting is available
for crew to perform required
duties, and
c) Sufficient Lighting is available
for passenger carrying
operations at night.
NOTE
Not required for cargo operations.
NOTE
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Select Cabin Emergency
lighting and confirm it is
operative.
2. Confirm Sufficient Lighting for
crew to perform required
duties, and
3. Confirm Sufficient Lighting for
passenger carrying operations
at night.
NOTE
Turn off all electrical power after
Emergency Lighting check to reset
the Emergency Lighting System.
Cabin emergency lighting does not
include floor proximity lights.
20-2
Passenger Notice
System (“No
Smoking Fasten
Seat Belt/Return to
Cabin”) Signs
C
-
0
(O) May be inoperative and
associated passenger seat(s)
occupied provided:
a) PA System is operative, and
b) PA System is used to notify
passengers when seat belts
should be fastened and
smoking is prohibited.
1. Confirm PA system is
operative, and
2. Use PA system to notify
passengers when:
² To fasten seat belts and
² Smoking is prohibited.
33 - LIGHTS
Page 2
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
33 - LIGHTS
20-3
EMERG LTS NOT
SEL/EMER LTS
NOT SLCT
Annunciator
4. Remarks and Exceptions
C
-
0
(O) May be inoperative provided
alternate procedures are
established and used to notify
passengers when seat belts should
be fastened, and smoking is
prohibited.
C
1
0
(O) May be inoperative provided,
before each departure:
a) Passenger cabin emergency
lighting system is verified
operative, and
b) Flight crew ensures the
INTERIOR LIGHTS EMERG
switch is ARMED.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Prior to flight, brief passengers how
they will be informed:
1. When to fasten seat belts, and
2. When smoking is prohibited.
1. Select Cabin Emergency
lighting and confirm it is
operative.
NOTE
Turn off all electrical power after
Emergency Lighting check to reset
the Emergency Lighting System.
2. Confirm EMERG LIGHTS
switch is ARMED prior to each
departure.
30-1
***
Wheel Well
Lighting System
C
-
0
30-2
***
Rear Equipment
Bay Lighting
C
-
0
30-3
***
Pannier Lighting
System (Except
750)
D
1
0
30-4
External Baggage
Compartment
(EBC) Lighting
System (750 Only)
D
1
0
33 - LIGHTS
Page 3
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
33 - LIGHTS
40-1
Anti-Collision
Beacons
1)
Fuselage/Vertical
Fin
2)
40-2
40-3
Wing/Tail White
Strobe Lights
Landing Lights
Taxi Lights (Wing
Mounted)
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
C
2
0
May be inoperative provided Wing/
Tail white strobe lights are operative
and used.
C
2
0
May be inoperative for day
operations.
C
-
0
May be inoperative provided
Fuselage/Vertical Fin Anti-Collision
Beacons are operative.
C
-
0
May be inoperative for day
operations.
C
2
1
One may be inoperative provided
adjacent taxi light is operative.
C
2
0
May be inoperative for day
operations.
C
2
0
(O) May be inoperative provided
both landing lights are operative.
Confirm that both landing lights are
operative.
C
2
0
May be inoperative for day
operations.
Limit operations to daylight hours.
C
2
0
(O) May be inoperative provided
nose taxi lights are operative.
Confirm that both nose taxi lights
are operative.
33 - LIGHTS
Page 4
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
33 - LIGHTS
4. Remarks and Exceptions
C
-
3
May be inoperative provided the
following minimum Position Lights
are operative:
a) One stationary red wing tip
light,
b) One stationary green wing tip
light, and
c) One stationary white taillight.
(Hawker Winglet
Aircraft with Light
Emitting Diode
(LED)
Wing tip Lights)
C
-
5
One stationary white taillight may
be inoperative.
(All Models)
C
-
0
May be inoperative for day
operations.
1)
Stationary White Tail
Light(s) (all models)
C
-
0
May be inoperative provided an
operative white strobe light is
located in close proximity to the
inoperative white position light.
40-5
Wing Ice Light(s)
C
-
1
C
-
0
May be inoperative for day
operations.
C
-
0
May be inoperative provided:
a) Ice Detector System is
installed and operative, and
b) Ground deicing procedures do
not require their use.
40-4
Position Lights
(Navigation)
(Except aircraft with
Hawker Winglets)
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
NOTE
All LED’s in both position lights in
each winglet must be operative for
night operations.
33 - LIGHTS
Page 5
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
33 - LIGHTS
4. Remarks and Exceptions
40-6
***
Logo Lights
D
-
0
40-7
***
Nose Taxi Lights
C
-
0
40-8
***
Pulselite® System
D
1
0
40-9
***
Wing Tip Taxi
Lighting System
D
1
0
40-10 Weight on Wheels
***
Switch (Automatic
Dim Function On
Landing)
D
1
0
50-1
C
1
0
Cabin Emergency
Lighting System
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
c)
(M) May be inoperative provided
system is deactivated.
1. Open the nose cone.
2. Locate the Pulselite® Control
Unit. Disconnect the Control
Unit connectors.
3. Cap and stow the connectors.
4. Pull and collar the Pulselite
circuit breaker.
5. Install an ‘INOP’ placard
adjacent to the Beacon
(BCN)/Pulse position on
Beacon/Pulselite® switch in
overhead control panel ’CG’.
May be inoperative for all cargo
operations and operation without
passengers.
INCANDESCENT
LIGHT SYSTEM
33 - LIGHTS
Page 6
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
33 - LIGHTS
4. Remarks and Exceptions
1)
Entryway Floor
Lighting (Aft Base
Crew Cabinet)
C
1
0
May be inoperative provided both
adjacent cabin aisle lights are
operative.
2)
Exterior Emergency
Lights (Over/Under
RH wing)
C
2
0
May be inoperative for Day
operation.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
LED LIGHT
SYSTEM
1)
LH FWD Reading/
Table Lights
C
3
1
Any two may be inoperative.
2)
RH FWD Reading/
Table Lights
C
3
2
Any one may be inoperative.
3)
LH Aft Reading/
Table Lights
C
-
1
Any may be inoperative provided
one remains operative.
4)
RH Aft Reading/
Table Lights
C
2
1
Any one may be inoperative.
50-2
***
Floor Proximity
Lighting System
C
-
-
May be inoperative provided light is
not part of Emergency Lighting
System.
33 - LIGHTS
Page 7
Sep.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
34---Navigation
00
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
9-1
Mach Indications
1)
Non-EFIS Equipped C
Aircraft
2
1
One Mach indicator may be
inoperative provided VMO/MMO
aural warning is operative.
C
2
0
(O) May be inoperative provided:
a) Flight remains at or below FL
295, and
b) A placard which sets forth this
limitation is affixed to the
instrument panel.
C
2
1
One may be inoperative provided:
a) EFIS Airspeed Tape displays
are installed at each pilot
station and are operative,
b) One Mach/Airspeed warning
system is operative, and
c) VMO/MMO aural warning
system is operative.
C
2
0
(O) May be inoperative provided:
a) Flight remains at or below FL
295, and
b) A placard which sets forth this
limitation is affixed to the
instrument panel.
2)
EFIS Equipped
Aircraft
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Do not exceed FL 295.
2. Affix a placard with this
limitation on the instrument
panel.
1. Place a placard MAX FL 295
on the instrument panel.
2. Plan flights at or below FL
295.
34 - NAVIGATION
Page 1
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
9-2
***
SAT/TAT Indicating C
System
-
0
(O) May be inoperative provided:
a) Outside air temperature (OAT)
indicator is operative, and
b) Flight Management System
(FMS) (if installed) is
operative.
9-3
***
True Airspeed
(TAS)/Indicating
System
C
-
0
9-4
***
RMI/BDI Indicators C
-
1
One indicating system may be
inoperative provided one
independent compass-heading
indicator is available at each pilot’s
station.
9-5
Non-Stabilized
Magnetic Compass
(Standby)
B
1
0
May be inoperative provided any
combination of three gyro or INS
(IRU) stabilized compass systems
are operative.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Confirm OAT indicator is
operative, and
2. Confirm FMS (if installed) is
operative.
34 - NAVIGATION
Page 2
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
B
1
0
(O) May be inoperative provided:
a) Any combination of two gyro
OR INS (IRU) stabilized
compass systems are
operative, and
b) Aircraft is operated with dual
independent navigation
capability and under positive
radar control by ATC, on the
enroute portion of the flight.
B
1
0
(O) May be inoperative for flights
that are entirely within areas of
magnetic unreliability provided at
least two stabilized directional gyro
systems are operative and used in
conjunction with approved free gyro
navigation techniques.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Confirm any combination of
three gyro or INS (IRU)
stabilized compass systems
are operative,
OR
2. Confirm any combination of
two gyro or INS (IRU)
stabilized compass systems
are operative, and
3. Aircraft is operated with dual
independent navigation
systems, and
4. Aircraft is operated under
positive enroute ATC RADAR
control.
Flights that are entirely within areas
of magnetic unreliability may be
flown provided at least two
stabilized directional gyro systems
are operative and used in
conjunction with approved free gyro
navigation techniques.
34 - NAVIGATION
Page 3
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
10-1
10-2
VMO/MMO Aural
Warnings
Altitude Alerting
System
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
B
2
1
B
2
0
(O) May be inoperative provided:
a) Both Mach/Airspeed
indicators at both pilot
positions are operative,
b) If installed, Ventral Tank is
either empty or EMPTY/FULL
indicator is operative, and
c) VMO/MMO Aircraft Flight
Manual (AFM) limitations are
observed.
1. For air data computer driven
indicators, confirm that both
left and right Mach/Airspeed
indicators are not flagged, and
2. For aircraft equipped with
Ventral Fuel Tank, tank must
either not be filled or EMPTY/
FULL indicator must be
verified operative.
3. Observe AFM VMO/MMO
limitations.
A
-
0
(O) May be inoperative provided:
a) Autopilot with altitude capture
and altitude hold is operative,
b) Enroute operations do not
require its use, and
c) Repairs are made within three
flight days.
1. Autopilot with altitude capture
and altitude hold is operative.
2. Flight planning must avoid use
of RVSM airspace.
NOTE
RVSM is not authorized.
1)
Aural Alert
C
-
0
May be inoperative provided:
a) Visual alert is operative, and
b) Autopilot with altitude capture
and hold is operative.
34 - NAVIGATION
Page 4
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
2)
Visual Alert
10-3
Altimeter Vibrators
1)
4. Remarks and Exceptions
C
-
0
May be inoperative provided:
a) Aural alert is operative, and
b) Autopilot with altitude capture
and hold is operative.
Servo Pneumatic
C
2
1
One may be inoperative provided
associated air data computer is
operative.
2)
Pneumatic
C
2
1
One may be inoperative provided
VMC exists at departure and arrival
airports.
3)
One Pneumatic and C
One Servo
Pneumatic
2
1
Servo Pneumatic may be
inoperative provided:
a) Associated air data computer
is operative, and
b) VMC exists at departure and
arrival airports.
4)
Standby Altimeter
Vibrator (With
Electric Altimeters
Installed)
C
1
0
May be inoperative provided VMC
exist at both departure and arrival
airports.
10-4
Standby Altimeter
Incorporated into Item 34-20-9.
Revision 6.
10-5
Altimeter Static
Error Correction
Module
Deleted, Revision 7
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
34 - NAVIGATION
Page 5
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
10-6
Outside Air
C
Temperature (OAT)
Indicator
-
0
(O) May be inoperative provided
alternate temperature indicating
system (True Air Temperature (TAT)
or Static Air Temperature (SAT)) is
operative and used.
10-8
Air Data Computer C
(ADC) Changeover/
Reversion Switches
2
0
(O) May be inoperative provided:
a) Associated instruments are
operative from independent
sources, and
b) Inoperative switches are not
moved during flight.
1)
ADC Reversion
Switch Lights
(Honeywell)
C
6
0
(O) Switch backlight and
annunciation, left and right, may be
inoperative provided associated
annunciation on the PFD is
operative.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Use the TAT/SAT indicator or the
Air Data page in the FMS for
Temperature indications.
1. Associated instruments are
operative from independent
sources, and
2. Inoperative switches are
placarded Inoperative (‘INOP’)
and not moved during flight.
3. Confirm both ADC’s are
providing information to their
respective sides (not cross
transferred) and in the event
of an ADC failure, the pilot
with the operating instruments
will become the flying pilot. No
attempt to cross-transfer data
should be made.
Confirm PFD annunciation each
time affected switch is moved.
34 - NAVIGATION
Page 6
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
2)
ADC REV Transfer
Switch Lights
(Pro Line 21)
C
4
0
(O) Switch backlight and
annunciation, left and right, may be
inoperative provided associated
annunciation on the PFD is
operative.
10-9
Vertical Speed
Indicator
B
2
1
One may be inoperative for day
VMC flight only.
20
Altimeter Vibrators
20-1
Flight Director
System(s)
1)
Aircraft Equipped
With Honeywell
Avionics
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Confirm PFD annunciation each
time affected switch is moved.
Incorporated into item 10-3, Rev 3.
C
2
1
One may be inoperative provided
approach minimums do not require
its use.
B
2
0
May be inoperative provided:
a) Auto Pilot is considered
inoperative, and
b) Approach minimums do not
require their use.
NOTE
RVSM is not authorized.
34 - NAVIGATION
Page 7
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
2)
Aircraft Equipped
With Collins
Avionics
4. Remarks and Exceptions
B
2
0
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
May be inoperative provided:
a) Auto Pilot is considered
inoperative, and
b) Approach minimums do not
require their use.
NOTE
With Collins Pro Line-equipped
aircraft, the A/P cannot be engaged
unless both Flight Director Systems
are operative.
NOTE
RVSM is not authorized.
20-2
Turn and Bank
Indication
1)
Rate of Turn
Indication
C
-
1
Turn function of one instrument
may be inoperative provided flight
is conducted in VMC conditions
only.
C
-
0
May be inoperative provided
standby attitude indicator is
operative.
34 - NAVIGATION
Page 8
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
20-3
Attitude Heading
Reference System
(AHRS) / Inertial
Reference System
(IRS)
1)
Primary AHRS/IRS
B
2
1
(O) One may be inoperative
provided:
a) Standby attitude reference
system is selected and
verified operative,
b) AFM limitations are observed,
and
c) Autopilot (A/P) is not used.
2)
Standby AHRS/IRS C
1
0
(O) May be inoperative provided
both primary AHRS/IRS systems
are verified operative.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Select and confirm operation
of Standby Attitude Reference
System.
2. Autopilot is not used.
Select and confirm Primary Attitude
Reference System.
34 - NAVIGATION
Page 9
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Confirm associated
instruments are operative
from independent sources,
and
2. Inoperative switches are
placarded ‘INOP’ and not
moved during flight.
3. Confirm the switch is not in
the cross transfer position,
and in the event of an AHRS
failure the pilot with the
operative instruments will be
the flying pilot. No attempt
should be made to cross
transfer data.
20-4
Compass and
Attitude/AHRS
Changeover/
Reversion Switches
C
2
0
(O) May be inoperative provided:
a) Associated instruments are
operative from independent
sources, and
b) Inoperative switches are not
moved during flight.
1)
AHRS Reversion
Switch Lights
(Honeywell)
C
6
0
(O) Switch backlight and
annunciation, left and right, may be
inoperative provided associated
annunciation on the PFD is
operative.
Confirm PFD annunciation each
time affected switch is moved.
2)
AHS REV Transfer
Switch Lights
(Pro Line 21)
C
4
0
(O) Switch backlight and
annunciation, left and right, may be
inoperative provided associated
annunciation on the PFD is
operative.
Confirm PFD annunciation each
time affected switch is moved.
20-5
***
Angle of Attack
System
(Series 1 thru 700)
C
-
0
34 - NAVIGATION
Page 10
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
C
1
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
0
***
Teledyne AOA
System
(BAe-125-800 &
Hawker 800 Only)
20-6
Standby Attitude
Indicator
20-7
Symbol Generator
Reversion Switches
C
2
0
(O) May be inoperative provided:
a) Associated instruments
operate normally from
independent sources, and
b) Inoperative switches are not
moved during flight.
1)
SG Reversion
Switch Lights
(Honeywell)
C
6
0
(O) Switch backlight and
annunciation, left and right, may be
inoperative provided associated
annunciation on the PFD is
operative.
Incorporated into Item 34-20-9,
Revision 6.
1. Confirm associated
instruments are operative
from independent sources,
and
2. Inoperative switches are
placarded ‘INOP’ and not
moved during flight.
3. Confirm the switch is not in a
cross transfer position and in
the event of a symbol
generator failure on either
side, the Reversion Switches
are not used to transfer data.
However the symbol
generator from the MFD may
be switched over to the
inoperative pilot station. The
MFD will be inoperative if this
is accomplished.
Confirm PFD annunciation each
time affected switch is moved.
34 - NAVIGATION
Page 11
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
20-8
Instrument
Comparator
4. Remarks and Exceptions
C
-
0
(O) May be inoperative provided:
a) Approach minimums do not
require its use, and
b) Flight crew monitors
instrument indications for
accuracy.
20-9
Standby Flight
Instruments/
Displays
1)
C
Standby Attitude
Indicator(s)
(Electro-Mechanical
Gyro Horizons)
-
0
May be inoperative provided not
required by FAR.
B
-
0
May be inoperative provided:
a) Operations are conducted in
day VMC, only, and
b) Operations are not conducted
into known or forecast Visual
Flight Rules (VFR)-on-Top
conditions.
a)
Glideslope/Localizer C
Indicator(s)
-
0
2)
Standby Altimeter(s) B
(Stand-Alone Unit)
-
0
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Plan flight to avoid requirement for
Comparator.
May be inoperative provided aircraft
is operated in day VMC, only.
34 - NAVIGATION
Page 12
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
3)
Secondary Flight
Display (3-In-1 Color
Graphic Standby
Attitude, Altitude,
and Airspeed
Indicator) OR
(4-In-1 Color
Graphic Standby
Attitude, Altitude,
Heading and
Airspeed Indicator)
(Meggitt)
a)
Standby Attitude
Display
4. Remarks and Exceptions
C
1
0
May be inoperative provided not
required by FAR.
B
1
0
May be inoperative provided:
a) Operations are conducted in
day VMC, only, and
b) Operations are not conducted
into known or forecast
VFR-On-Top conditions.
b)
Standby Altimeter
Display
C
1
0
May be inoperative provided aircraft
is operated in day VMC only.
c)
Baroset Knob
C
1
0
May be inoperative provided aircraft
is operated in day VMC only.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
34 - NAVIGATION
Page 13
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
d)
Standby Heading
Display(s)
C
-
0
e)
Standby Mach
Number Indicator
C
1
0
f)
Instrument Landing C
System (ILS) Button
1
0
g)
HP/IN Button
C
1
0
h)
Light Sensor
C
1
0
24
Air Data Computer
System
30-2
Marker Beacons
C
-
0
May be inoperative provided
approach minimums do not
required their use.
30-3
***
Microwave Landing C
System (MLS)
-
0
As required by FAR.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
May be inoperative provided:
a) Two independent Heading
Reference Systems are
operative, and
b) Magnetic compass is
operative.
Deleted, Revision 2.
NOTE
Equipment is not operationally
approved for steep approaches in
the United States of America.
30-4
Radio Compass
(ADF) System
C
-
-
As required by FAR.
30-5
NAV/COM Preselect C
Tuning Functions
-
0
May be inoperative provided direct
tuning mode is installed and
operative for each associated unit.
34 - NAVIGATION
Page 14
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
30-6
NAV/COM/ADF/
TDR Memory
Channels
C
-
0
May be inoperative provided
manual tuning is operative.
30-7
NAV/COM/ADF/
TDR Digital
Frequency Selector/
LCD/LED
C
-
1
One pilot side only may be
inoperative provided:
a) Manual remote tune or dual
FMS/CDU tune capability is
operative, and
b) All Digital Frequency Selector/
LCD/LED display units on
opposite pilot side are
operative.
32-1
***
ILS Offset System
C
1
0
May be inoperative provided
procedures do not require its use.
40-1
Radio Altimeter
System
A
-
0
(M) (O) May be inoperative
provided:
a) Affected TAWS/GPWS
functions are considered
inoperative,
b) TCAS II RA Mode is
considered inoperative,
c) Approach minimums or
operating procedures do not
require its use,
d) Alternate procedures are
established and used, and
e) Repairs are made within two
flight days.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Copilot will call out altitudes during
1. Confirm there is no Radio
approach including minimum
Altimeter display.
2. If Radio Altimeter is displayed, altitudes.
pull and collar the RAD ALT
circuit breaker.
34 - NAVIGATION
Page 15
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
40-2
Weather Radar
System
C
-
-
As required by FAR.
1)
***
Windshear
Detection and
Avoidance System
(Predictive)
C
-
0
(O) May be inoperative provided
alternate procedures are
established and used.
MAINTENANCE
PROCEDURES
1. Check departure, enroute,
arrival, and alternate weather
conditions for potential
windshear conditions.
2. Review windshear recovery
procedures.
NOTE
Operators alternate procedures
should include reviewing windshear
avoidance and windshear recovery
procedures.
40-3
***
VTA (Voice Terrain C
Advisory) System or
Equivalent
-
0
(M) May be inoperative provided
system is deactivated.
40-4
1)
Terrain Awareness
Warning System
(TAWS)/Ground
Proximity Warning
System (GPWS)
A
-
0
(O) May be inoperative provided:
a) Alternate procedures are
established and used, and
b) Repairs are made within two
flight days.
(Class A or B
required)
OPERATIONAL
PROCEDURES
1. Pull and collar affected circuit
breaker(s).
2. Place INOP placard adjacent
to system control.
1. Exercise extreme caution and
vigilance with regard to
vertical descent rate, radar
altimeter readouts,
recognizing signs of
windshear, and
2. In the event of a windshear
encounter, promptly act to
counter the effects of the
windshear as described in the
appropriate aircraft manuals.
34 - NAVIGATION
Page 16
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
(Class C TAWS or C
GPWS not required
by FAR)
-
0
(O) May be inoperative provided
alternate procedures are
established and used.
NOTE
Any mode that is operative may be
used.
a)
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Exercise caution and vigilance
with regard to vertical descent
rate, radar altimeter readouts,
recognizing signs of
windshear, and
2. In the event of a windshear
encounter, promptly act to
counter the effects of the
windshear as described in the
appropriate aircraft manuals.
Modes 1-4
(Class A TAWS
required)
A
4
0
(O) May be inoperative provided:
a) Alternate procedures are
established and used, and
b) Repairs are made within two
flight days.
Exercise extreme caution and
vigilance with regard to vertical
descent rate and radar altimeter
readouts.
Modes 1 & 3
(Class B TAWS
required by FAR)
A
2
0
(O) May be inoperative provided:
a) Alternate procedures are
established and used, and
b) Repairs are made within two
flight days.
Exercise extreme caution and
vigilance with regard to vertical
descent rate and radar altimeter
readouts.
34 - NAVIGATION
Page 17
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
b)
Test Mode
A
1
0
c)
Glideslope
Deviation
(Mode 5)
(Class A TAWS
required by FAR)
C
-
1
B
-
0
C
3
0
***
Modes 2, 4 & 5
(Class B TAWS
required by FAR)
(O) May be inoperative provided:
a) GPWS is considered
inoperative, and
b) Repairs are made within two
flight days.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Exercise extreme caution and
vigilance with regard to
vertical descent rate, radar
altimeter readouts,
recognizing signs of
windshear, and
2. In the event of a windshear
encounter, promptly act to
counter the effects of the
windshear as described in the
appropriate aircraft manuals.
3. TAWS alerts are not to be
considered reliable.
34 - NAVIGATION
Page 18
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
d)
Advisory Callouts
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
B
-
0
(O) May be inoperative provided
alternate procedures are
established and used.
1. Exercise extreme caution and
vigilance with regard to
vertical descent rate, radar
altimeter readouts,
recognizing signs of
windshear, and
2. In the event of a windshear
encounter, promptly act to
counter the effects of the
windshear as described in the
appropriate aircraft manuals.
C
-
0
(O) May be inoperative provided:
a) Advisory callout not required
by FAR, and
b) Alternate procedures are
established and used.
1. Exercise extreme caution and
vigilance with regard to
vertical descent rate, radar
altimeter readouts,
recognizing signs of
windshear, and
2. In the event of a windshear
encounter, promptly act to
counter the effects of the
windshear as described in the
appropriate aircraft manuals.
34 - NAVIGATION
Page 19
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
e)
***
Windshear Mode
(Reactive)
(Class A TAWS
required by FAR)
4. Remarks and Exceptions
B
1
0
(O) May be inoperative provided
alternate procedures are
established and used.
NOTE
Operator’s alternate procedure
should include reviewing windshear
avoidance and windshear recovery
procedures.
(Class A TAWS
required by FAR)
C
-
0
(O) May be inoperative provided:
a) Alternate procedures are
established and used, and
b) Windshear Detection and
Avoidance System
(Predictive) operates
normally.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Exercise extreme caution and
vigilance with regard to
vertical descent rate
recognizing signs of
windshear, and
2. In the event of a windshear
encounter, promptly act to
counter the effects of the
windshear as described in the
appropriate aircraft manuals.
1. Exercise extreme caution and
vigilance with regard to
vertical descent rate, radar
altimeter readouts,
recognizing signs of
windshear, and
2. In the event of a windshear
encounter, promptly act to
counter the effects of the
windshear as described in the
appropriate aircraft manuals.
34 - NAVIGATION
Page 20
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
(Class B TAWS
required by FAR)
4. Remarks and Exceptions
C
1
0
(O) May be inoperative provided
alternate procedures are
established and used.
2)
B
Terrain System –
Forward Looking
Terrain Avoidance
(FLTA) and
Premature Descent
Alert (PDA)
Functions
-
0
(O) May be inoperative provided
alternate procedures are
established and used.
3)
Terrain Displays
(Class A TAWS
required)
C
-
1
B
-
0
***
(Class B TAWS
required)
C
-
0
4)
***
Runway Awareness C
& Advisory System
(RAAS)
1
0
40-5
***
Lightning Sensor
System
C
-
0
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Exercise extreme caution and
vigilance with regard to
vertical descent rate, radar
altimeter readouts,
recognizing signs of
windshear, and
2. In the event of a windshear
encounter, promptly act to
counter the effects of the
windshear as described in the
appropriate aircraft manuals.
Exercise extreme caution and
vigilance with regard to vertical
descent rate and radar altimeter
readouts.
34 - NAVIGATION
Page 21
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
40-6
***
Radarnav/Datanav
System
C
-
0
40-7
***
Storm Scope
D
-
0
42-1
***
TACAN Number 2
Tuning System
C
1
0
May be inoperative provided
procedures do not require its use.
43-1
***
ATC Transponder
Attenuation System
C
1
0
May be inoperative provided
procedures do not require its use.
50-1
LNAV or RNAV
Systems
C
-
-
As required by FAR.
50-2
***
Flight Management
Systems (FMS)
C
-
0
(O) May be inoperative provided
operations do not require FMS.
1)
NAV Data Base
C
-
-
(O) May be out of currency
provided:
a) Current Aeronautical Charts
are used to verify Navigation
Fixes before dispatch,
b) Procedures are established
and used to verify status and
suitability of Navigation
Facilities used to define route
of flight, and
c) Approach Navigation Radios
are manually tuned and
identified.
50-3
Distance Measuring D
Equipment (DME)
Systems
-
-
Any in excess of those required by
FAR may be inoperative.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Confirm that flight may be
conducted without FMS (See Item
28-42-2).
1. Current Aeronautical Charts
are used to confirm
Navigation Fixes prior to
dispatch, and
2. The status and suitability of
Navigation Facilities used to
define route of flight are
checked prior to each flight,
and
3. Approach Navigation radios
are manually tuned and
identified.
34 - NAVIGATION
Page 22
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
50-4
ATC Transponders
and Automatic
Altitude Reporting
Systems
4. Remarks and Exceptions
B
-
0
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
May be inoperative provided:
a) Enroute operations do not
require their use, and
b) Prior to flight, approval is
obtained from ATC facilities
having jurisdiction over the
planned route of flight.
NOTE
RVSM is not authorized.
D
-
1
Any in excess of those required by
FAR may be inoperative.
1)
A
Elementary and
Enhanced Downlink
Aircraft Reportable
Parameters not
Required by FAR
-
0
May be inoperative provided:
a) Enroute operations do not
require its use, and
b) Repairs are made prior to
completion of the next heavy
maintenance visit.
2)
C
ATC Transponder
Identification (Ident)
Buttons
-
2
May be inoperative provided one is
operative at each pilot position.
50-5
VHF Navigation
(VOR/ILS) System
C
-
-
As required by FAR.
50-6
***
Global Positioning
System (GPS)
C
-
0
As required by FAR.
50-7
***
D
Traffic Advisory
System (B.F.
Goodrich Skywatch/
SKY-497)
1
0
34 - NAVIGATION
Page 23
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
50-8
1)
2)
4. Remarks and Exceptions
Automatic
Dependent
Surveillance
Broadcast (ADS-B)
System
D
Link and Display
Processor Unit
(LDPU)
D
-
0
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
May be inoperative provided it is
not required by 14 CFR.
NOTE
If ADS-B is installed in lieu of or as
a replacement for 14 CFR required
equipment, the repair category in
the operator’s Minimum Equipment
List (MEL) will be the same as that
of the 14 CFR required equipment.
-
0
NOTE
Cockpit Display Traffic Information
(CDTI) display of data from other
aircraft systems may be used.
Cockpit Display and D
Traffic Information
(CDTI)
-
0
3)
CDTI Control Panel D
-
0
4)
Data Link
Transmitters
D
-
0
5)
Data Link Receivers D
-
0
NOTE
ADS-B data transmissions may
continue.
May be inoperative provided:
a) Flight Identification (ID) can
be set, and
b) Screen Display is acceptable
to the flight crew.
34 - NAVIGATION
Page 24
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
60-1
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Traffic Collision and B
Avoidance System
(TCAS I)
-
0
(M) May be inoperative provided:
a) System is deactivated and
secured, and
b) Enroute or approach
procedures do not require its
use.
1. Pull TCAS circuit breaker and
tie-wrap.
2. Install “TCAS INOP” placards
on both RMU’s for Honeywell
equipped aircraft and near the
FMS-CDU for Collins
equipped aircraft.
1. Confirm the associated (M)
procedure has been
completed to deactivate and
secure the system.
2. Plan flight so enroute and
approach procedures do not
require use of TCAS.
3. Use ATC on (modes S and A)
or ATC-ALT (modes A, C, S).
C
-
0
(M) May be inoperative provided:
a) System not required by FAR,
b) System is deactivated and
secured, and
c) Enroute or approach
procedures do not require its
use.
1. Pull TCAS circuit breaker and
tie-wrap.
2. Install “TCAS INOP” placards
on both RMU’s for Honeywell
equipped aircraft and near the
FMS-CDU for Collins
equipped aircraft.
1. Confirm the associated (M)
procedure has been
completed to deactivate and
secure the system.
2. Plan flight so enroute and
approach procedures do not
require use of TCAS.
3. Use ATC on (modes S and A)
or ATC-ALT (modes A, C, S).
NOTE
TCAS is not required on any aircraft
with a seating configuration of less
than 10 seats, excluding any pilot
seat, per FAR 135.180, and it is not
required by FAR 91.
34 - NAVIGATION
Page 25
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
(TCAS II)
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
B
-
0
(M) (O) May be inoperative
provided:
a) System is deactivated and
secured, and
b) Enroute or approach
procedures do not require its
use.
1. Pull TCAS circuit breaker and
tie-wrap.
2. Install “TCAS INOP” placards
on both RMU’s for Honeywell
equipped aircraft and near the
FMS-CDU for Collins
equipped aircraft.
1. Confirm the associated (M)
procedure has been
completed to deactivate and
secure the system.
2. Plan flight so enroute and
approach procedures do not
require use of TCAS.
3. Use ATC on (modes S and A)
or ATC-ALT (modes A, C, S).
C
-
0
(M) May be inoperative provided:
a) System not required by FAR,
b) System is deactivated and
secured, and
c) Enroute or approach
procedures do not require its
use.
1. Pull TCAS circuit breaker and
tie-wrap.
2. Install “TCAS INOP” placards
on both RMU’s for Honeywell
equipped aircraft and near the
FMS-CDU for Collins
equipped aircraft.
1. Confirm the associated (M)
procedure has been
completed to deactivate and
secure the system.
2. Plan flight so enroute and
approach procedures do not
require use of TCAS.
3. Use ATC on (modes S and A)
or ATC-ALT (modes A, C, S).
NOTE
TCAS is not required on any aircraft
with a seating configuration of less
than 10 seats, excluding any pilot
seat, per FAR 135.180, and it is not
required by FAR 91.
34 - NAVIGATION
Page 26
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1)
C
Combined Traffic
Alert (TA) and
Resolution Advisory
(RA) Dual Display
System(s)
2
1
May be inoperative on the
non-flying pilot side provided:
a) TA and RA visual display is
operative on the flying pilot’s
side, and
b) TA and RA audio function is
operative on the flying pilot’s
side.
2)
Resolution Advisory C
(RA) Display
Systems
2
1
May be inoperative on non-flying
pilot’s side.
C
-
0
(O) May be inoperative provided:
a) Traffic Alert (TA) visual display
and audio functions are
operative,
b) TA only mode is selected by
the crew, and
c) Enroute and/or approach
procedures do not required
their use.
1. Confirm visual and audio
functions.
2. Place INOP Placard adjacent
to affected RA position.
3. Select only TA mode.
4. Plan flight such that RA mode
is not required.
1. Confirm visual and audio
functions.
2. Place INOP Placard adjacent
to affected TA position.
3. Select only RA mode.
4. Plan flight such that TA mode
is not required.
3)
Traffic Alert (TA)
Display System(s)
C
-
0
(O) May be inoperative provided:
a) RA visual display and audio
functions are operative, and
b) Enroute and/or approach
procedures do not require its
use.
4)
Audio Functions
B
1
0
May be inoperative provided
enroute or approach operations do
not require use of TCAS.
34 - NAVIGATION
Page 27
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
5)
Airspace Selection
Function
C
60-2
***
Windshear Detector
System
70-1
EFIS/MFD Cooling
Fans (Except Collins
Pro Line
21-Equipped A/C)
1)
Aircraft with 5 Fans A
Installed
-
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
0
Deleted Revision 7; conflicts with
other Windshear Detection Relief.
5
4
(O) One may be inoperative
provided:
a) Standby attitude indicator is
operative,
b) Bearing Distance indicator
(BDI) and standby compass
are operative,
c) Cabin temperature can be
maintained below 35° C, and
d) Repairs are made within three
flight days.
1. Confirm standby attitude
indicator is operative, and
2. Confirm BDI and standby
compass is operative.
3. Maintain cabin temperature
below 35° C.
4. Make repairs within three
flight days.
34 - NAVIGATION
Page 28
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
2)
Aircraft with 3 Fans A
Installed
3
2
(O) One may be inoperative
provided:
a) Standby attitude indicator is
operative,
b) Distance Bearing Indicator
(BDI) and standby compass
are operative.
c) Cabin temperature can be
maintained below 35° C, and
d) Repairs are made within three
flight days.
70-2
C
EFIS/MFD OVHT
Annunciators (Series
700, 800 and 800XP,
Except Pro Line 21
Equipped Aircraft)
-
0
(M) May be inoperative provided:
a) All EFIS/MFD cooling fans are
verified operative before each
departure, and
b) Associated EFIS/MFD FAN
FAIL annunciators are
operative.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Confirm standby attitude
indicator is operative, and
2. Confirm BDI and standby
compass is operative.
3. Maintain cabin temperature
below 35° C.
4. Make repairs within three
flight days.
1. Reach up behind the
instrument panel and verify
the EFIS instrument blower/s
and/or the MFD blower is
forcing air out its respective
piccolo tube. Verify all of the
following fans are operating:
• DPU fan 2 ea
• MPU fan 1 ea
• EFIS fan 2 ea
• MFD fan 1 ea.
2. Verify that associated EFIS/
MFD FAN FAIL Annunciators
are operative.
34 - NAVIGATION
Page 29
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
70-3
EFIS/MFD FAN
FAIL Annunciators
(Series 700, 800,
800XP Only Except
Pro Line 21
Equipped Aircraft)
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
C
-
-
(O) One may be inoperative
provided:
a) Nose Cooling Fan and Fan
Door are verified operative,
b) Associated EFIS/MFD FAN
FAIL Annunciators are
operative, and
c) Ground use of EFIS is limited
to not more than 30 minutes.
1. Confirm Nose Avionics Fan
Door is OPEN and airflow is
present with power ON, and
2. Confirm EFIS/MFD Fan Fail
annunciators’ operation.
3. Limit use of EFIS/MFD ground
use to 30 minutes before
takeoff and after landing.
C
-
-
(O) One may be inoperative
provided:
a) Nose Cooling Fan and Fan
Door are verified operative
before each departure,
b) Associated EFIS/MFD OVHT
Annunciators are operative,
and
c) Ground use of EFIS is limited
to not more than 30 minutes.
1. Confirm Nose Avionics Fan
Door is OPEN and airflow is
present, and
2. Confirm EFIS/MFD Overheat
annunciators’ operation, and
3. Limit use of EFIS/MFD ground
use to 30 minutes before
takeoff and after landing.
34 - NAVIGATION
Page 30
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
70-4
Electronic Flight
Displays (EFD’s)
1)
Non-Collins Pro
Line 21 Equipped
Aircraft, Only
4. Remarks and Exceptions
C
-
0
(M) May be inoperative provided:
a) All EFIS/MFD cooling fans are
verified operative before each
departure,
b) Associated EFIS/MFD OVHT
Annunciators are operative,
and
c) Ground use of EFIS is limited
to not more than 30 minutes.
B
4
3
(O) One unit may be inoperative
provided:
a) Inoperative display is
positioned in the Right Side
EHSI location,
b) RMI/BDI’s) is/are operative,
and
c) Standby Instrument(s) are
operative.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Reach up behind the
instrument panel and verify
EFIS instrument blower/s and/
or the MFD blower is forcing
air out its respective piccolo
tube. Assure all of the
following fans are operative:
• DPU fan 2 ea
• MPU fan 1 ea
• EFIS fan 2 ea
• MFD fan 1 ea.
2. Verify associated EFIS/MFD
OVHT Annunciators are
operative.
Confirm an EADI is available on the
RH side. Two EFD’s will display on
the LH side. The captain will
determine if this is a safe
configuration for the flight.
34 - NAVIGATION
Page 31
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
2)
Collins Pro Line 21
Equipped Aircraft
4. Remarks and Exceptions
B
4
3
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Right side MFD position may be
inoperative.
NOTE
With IFIS-5000 AFD installed, the
EFB is affected (Refer to Chapter
46).
70-5
EFIS Symbol
Generator Units
(SGU, MSG, DPU,
and/or MPU)
B
3
2
(O) One may be inoperative
provided:
a) The No. 1 (left side) SGU/
DPU remains operative, and
b) Each pilot’s EFIS is driven be
an operative independent
symbol generator unit (SGU,
MSG, DPU, or MPU).
70-6
Multi-Function
Display (MFD)
(Except Pro Line 21
Equipped Aircraft)
C
1
0
(O) May be inoperative provided:
1. Procedures do not require its
use, and
2. When radar is required, at
least one radar display is
operative.
70-7
***
EADI Annunciator/
Displays
1)
FAST/SLOW
Indications
C
2
0
Confirm each pilots’ EFIS is driven
by an independent SGU, MSG,
DPU, or MPU which is operative.
Refer to the applicable Avionics
Operating Manual for guidance.
1. Plan flight ensuring
procedures do not require its
use, and
2. When radar is required, at
least one radar display is
operative.
3. Confirm both pilots’ Symbol
Generators are operative.
4. Printed checklist will be used
since the electronic checklist
will be inoperative.
34 - NAVIGATION
Page 32
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
70-8
Deleted Revision 4.
Laser Altimeter
(FAA Flight
Inspection Aircraft
Only)
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
34 - NAVIGATION
Page 33
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
70-9
Multifunction
Display Controller
(Honeywell
Equipped Aircraft,
Only)
4. Remarks and Exceptions
C
1
0
(O) May be inoperative provided:
a) Procedures do not require its
use,
b) When Radar is required, at
least one Radar Display is
verified operative before each
departure, and
c) Before each departure, both
Symbol Generators (SG) and
their reversionary switching
are verified operative, and
d) Alternate Normal and
Emergency Procedures are
established and used.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Plan flight ensuring that the
procedures do not require its
use, and
2. Ensure that one RADAR
display is operative, and
3. Ensure that both SG’s and
reversionary switching are
operative.
• Confirm both SG’s are
operative, observing operation
with independent control
using each respective Display
Controller.
• Confirm reversionary
switching works normally by
selecting Pilot’s SG
pushbutton and observing
amber boxed SG2 in both
EADIs.
• Deselect SG pushbutton and
confirm the SG2 annunciation
is removed.
• Select Copilot’s SG
pushbutton and confirm an
amber boxed SG1 in both
EADIs.
4. Deselect SG pushbutton and
confirm SG1 annunciation is
removed.
34 - NAVIGATION
Page 34
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
70-10 Nose Compartment
Avionics Cooling
System (Except Pro
Line 21 Equipped
Aircraft)
1)
Avionics Cooling
Fan
C
1
0
(O) May be inoperative provided:
a) Avionics Cooling Fan Door
remains closed, and
b) Ground operation of the EFIS
and MFD is limited to not
more than 30 minutes.
1. Confirm door is closed for
aircraft with external fan door.
2. Follow AFM abnormal
procedures. See abnormal
checklist for NOSE FAN.
3. Limit ground operation of the
EFIS and MFD to 30 minutes.
2)
Avionics Cooling
Fan Door
C
1
0
(O) May be inoperative provided:
a) Avionics Cooling Fan Door
remains closed, and
b) Ground operation of the EFIS
and MFD is limited to not
more than 30 minutes.
1. Confirm door is closed for
aircraft with external fan door.
2. Follow AFM abnormal
procedures. See abnormal
checklist for NOSE FAN.
3. Limit ground operation of the
EFIS and MFD to 30 minutes.
70-11 Electronic Checklist C
System and Controls
-
0
(O) May be inoperative provided
alternate checklists and procedures
are used.
Use paper or approved alternate
checklist.
70-12 Nose Compartment
Ventilation System
(Collins Equipped
Aircraft Except
Pro-Line 21)
34 - NAVIGATION
Page 35
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
34 - NAVIGATION
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
1)
Avionics Cooling
Fan Low Speed
Warning Detector
C
1
0
(M) May be inoperative OFF
provided Avionics Nose Cooling
Fan is verified operative.
Check for airflow from Avionics
Nose Cooling Fan.
2)
Avionics Cooling
Fan Nose FAIL
Annunciator
C
1
0
(M) May be inoperative OFF
provided Avionics Nose Cooling
Fan is verified operative.
Check for airflow from Avionics
Nose Cooling Fan.
80-1
***
Airborne Flight
Instrument System
(AFIS)
D
-
0
(O) May be inoperative provided
alternate procedures are
established and used.
OPERATIONAL
PROCEDURES
Utilize any other type of
communication available such as
Flight Phone, HF/VHF phone patch,
etc.
34 - NAVIGATION
Page 36
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
35---Oxygen
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
35 - OXYGEN
00-1
Oxygen Content
Indicator(s)
1)
Servicing Gauge
4. Remarks and Exceptions
D
-
0
(M) May be inoperative provided:
a) Cockpit gauge is verified
operative, and
b) Contents are verified full after
servicing the oxygen system.
2)
Cockpit Gauge
C
1
0
(M) (O) May be inoperative
provided:
a) Flight remains at or below
10,000 feet Mean Sea Level
(MSL),
b) Fault is verified to be in the
indicator only and have no
leaks,
c) An acceptable procedure is
used to confirm oxygen supply
is above minimum required to
complete the AFM smoke
evacuation procedures, and
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Make sure the cockpit gauge
is operative.
2. Make sure the contents are
full after oxygen system
servicing.
Make sure the fault is in the
indicator only and no leaks exist.
1. Plan flight for operation at or
below 10,000 feet MSL,
2. Provide appropriate
passenger briefing.
3. Make sure by viewing the
ACT/POM Oxygen Servicing
Gauge that adequate oxygen
is available for performing
Emergency Smoke
Evacuation procedures.
d) Passengers are appropriately
briefed.
35 - OXYGEN
Page 1
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
35 - OXYGEN
00-2
Oxygen Cylinders
1)
(Remaining Oxygen
Cylinders have less
than 1,400 Liters but
more than 750 Liters
of combined volume
available for use.
4. Remarks and Exceptions
A
-
-
(M) (O) Any bottles in excess of 750
Liters useable oxygen may be
inoperative provided:
a) Aircraft remains at or below
10,000 feet MSL,
b) Passenger oxygen supply
valve is verified closed,
c) Passengers are appropriately
briefed,
d) Oxygen supply to flight crew is
verified adequate to meet
operations being conducted,
e) Cockpit oxygen quantity
indicator is verified operative,
and
f) Repairs are made within three
flight days.
NOTE
Aircraft cannot take off with less
than 750 Liters of oxygen available
for crew use.
MAINTENANCE
PROCEDURES
1. Make sure the inoperative
bottle(s) shutoff valve is
closed.
2. Post a placard in the cockpit
noting the number and
nominal sizes (in liters) of
remaining operative bottles.
OPERATIONAL
PROCEDURES
1. Plan flight to operate below
10,000 feet MSL, and
2. Make sure the cockpit oxygen
quantity indicator is operative.
3. Make sure the oxygen supply
to flight crew is adequate to
meet operations being
conducted including planning
for “Smoke in the Cockpit”
procedure. Oxygen duration
may be factored using the
duration data provided in
Table 1.
4. Plan flight in accordance with
applicable operational FAR.
Oxygen duration may be
factored using the duration
data provided in Table 1.
5. Brief passengers that flight will
be conducted at low altitude.
NOTE
Aircraft cannot take off with less
than 750 Liters of oxygen available
for crew use.
35 - OXYGEN
Page 2
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
35 - OXYGEN
2)
(Remaining Oxygen
Cylinders have
more than 1400
Liters of combined
volume available for
use.)
4. Remarks and Exceptions
C
-
1
(M) (O) Any bottles in excess of
1,400 Liters may be inoperative
provided oxygen supply to the flight
crew and passengers is verified
adequate to meet operations being
conducted.
MAINTENANCE
PROCEDURES
1. Make sure the inoperative
bottle(s) shutoff valve is
closed.
2. Post a placard in the cockpit
noting the number and
nominal sizes (in liters) of
remaining operative bottles.
OPERATIONAL
PROCEDURES
If one (1) bottle is operative, make
sure that the remaining oxygen
quantity is adequate to meet
operations being conducted.
35 - OXYGEN
Page 3
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
35 - OXYGEN
00-3
Barometric Valve
Automatic
Function
4. Remarks and Exceptions
C
1
0
(M) May be inoperative provided:
a) Manual deployment system is
operative,
b) Flight remains at or below FL
300, and
c) Passenger supply valve is
operative.
MAINTENANCE
PROCEDURES
1. Make sure the oxygen
cylinders are fully charged
and cylinder stop valves are
open.
2. Open the passenger oxygen
supply valve.
3. Select OVERRIDE on the
oxygen control panel, on
pilot’s side panel.
4. Make sure all drop out mask
boxes have opened and all
masks are hanging from
lanyard cord.
OPERATIONAL
PROCEDURES
Do not exceed Flight Level (FL)
300.
NOTE
Oxygen pressure remaining inside
the cabin oxygen lines must be
decreased before repacking mask.
5. Reset the cabin oxygen
manual override knob.
6. Decrease remaining oxygen
pressure at each deployed
mask box by pulling the
lanyard cord which removes
the lanyard pin from the valve.
7. Let the inlet oxygen pressure
exhaust, and install the
lanyard pin into the valve.
8. Carefully restow all deployed
masks.
9. Place placard MAX FL 300 on
instrument panel.
35 - OXYGEN
Page 4
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
35 - OXYGEN
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
10-1
Protective
Breathing
Equipment (PBE)
D
-
-
Any in excess of those required by
FAR may be inoperative.
20-1
Passenger Oxygen
Masks and
Stowages
C
-
0
(O) May be inoperative provided
associated seats are blocked and
placarded to prevent occupancy.
1. Block and placard any seat
with an inoperative mask to
prevent occupancy, and
2. Brief passengers not to
occupy affected seats.
C
-
0
(O) May be inoperative provided:
a) Flight is not conducted where
the minimum enroute altitude
is above 14,000 feet MSL,
b) Pressurization system is
operative,
c) Flight remains at or below FL
250,
d) Portable oxygen is provided to
each passenger above 15,000
feet MSL, and
e) Passengers are appropriately
briefed.
1. Make sure all components of
the pressurization system
operate normally.
2. Place placard MAX FL 250 on
instrument panel.
3. Flight is not to be conducted
where the MEA is above
14,000 feet MSL,
4. Flight to be conducted at or
below FL 250.
5. Provide portable oxygen to
each passenger above 15,000
feet MSL,
6. Brief passengers.
35 - OXYGEN
Page 5
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8a - 08/01/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
35 - OXYGEN
30-1
Portable Oxygen
Dispensing Unit
4. Remarks and Exceptions
C
-
-
(M) Any in excess of those required
by FAR may be unserviceable or
missing provided:
a) Required distribution of
serviceable bottles is
maintained throughout the
aircraft, and
b) Bottles not properly serviced
are replaced, serviced or
removed at the next available
maintenance facility.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Bottles not properly serviced
are to be replaced, serviced or
removed at the next available
maintenance facility.
2. Bottle is to be secured in its
original housing and
placarded as inoperative and
empty.
Table 1
Useable Oxygen at Reduced Supply Pressure
NOTE
Oxygen duration may be factored for the number of bottles installed to number of bottles available and for the percentage of full indication
using the following values:
Useable Capacity (Liters - Normal Temperature and Pressure Dry (NTPD))
Gauge
Indication
(PSIG)
1 X 750
2 X 750
3 X 750
4 X 750
2 X 750 + 1096
1400
Full (1800)
675
1350
2025
2700
2336
1260
3/4 (1350)
487
975
1462
1950
1687
910
1/2 (900)
300
600
900
1200
1038
560
1/4 (450)
112
225
337
450
389
210
Bottle Configuration (Liters - Nominal)
35 - OXYGEN
Page 6
Jul.2009
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
38---Water/Waste
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
38 - WATER/WASTE
10-1
Potable Water
System
MAINTENANCE
PROCEDURES
4. Remarks and Exceptions
C
-
-
(M) Individual components may be
inoperative provided:
a) Associated components are
deactivated or isolated, and
b) Associated system
components are verified not to
have leaks.
NOTE
Any portion of the system which is
operative may be used.
D
10-2
-
-
(O) May be inoperative provided:
a) System is drained, and
b) Procedures are established to
ensure that the system is not
serviced.
OPERATIONAL
PROCEDURES
1. Pull and collar appropriate
circuit breaker(s).
2. Check associated
components to assure that
there are no signs of leakage.
3. Install ‘INOP’ placard.
NOTE
Reference applicable AMM, AMM
Addenda, or AMM Supplement for
procedures and associated Circuit
Breakers.
1. Remove water supply tank
and drain existing water.
2. Ensure that system is not
serviced.
Basin Waste
System
38 - WATER/WASTE
Page 1
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
38 - WATER/WASTE
MAINTENANCE
PROCEDURES
4. Remarks and Exceptions
OPERATIONAL
PROCEDURES
1)
Basin Drain
Mast(s)
C
-
0
(O) May be inoperative provided:
a) Associated components are
drained and not used,
b) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
c) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
d) Flight is conducted in an
unpressurized configuration,
and
e) Aircraft is operated at or
below 15,000 feet MSL.
f) Applicable Oxygen
Requirements are established
and complied with.
1. Drain associated components,
as needed and install ‘INOP’
placard,
2. Reference Table 1, Configure
Aircraft for Unpressurized
Flight.
2)
Basin Waste
System (Except
Drain Mast and
Mast Check Valve
C
-
0
(O) May be inoperative provided:
a) Associated components and
water supply are drained, and
b) Procedures are established to
ensure the system is not
serviced or used.
1. Drain associated components
and water supply, and
2. Establish procedures to
ensure system is not serviced
or used.
10-3
Lavatory Waste
System (Blue
Water)
38 - WATER/WASTE
Page 2
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
38 - WATER/WASTE
1)
Lavatory Plug
Assembly
(Lavatory
Doughnut)
MAINTENANCE
PROCEDURES
4. Remarks and Exceptions
C
-
0
(O) May be inoperative, or missing,
provided:
a) Associated Lavatory Waste
Tank is drained,
b) Pilot in Command determines
that flight duration is
acceptable with toilet
unusable,
c) Associated toilet is secured
closed and placarded, ‘INOP
– DO NOT USE’,
d) Ram Air and Dump Valve, or
Vent Valve (Post Mod.
25G726A/C) are verified
operative before the first flight
of the day,
e) DUMP VLV, or VENT VALVE
(Post Mod. 25G726A/C) is
selected OPEN,
f) Flight is conducted in an
unpressurized configuration,
and
g) Aircraft is operated at or
below 15,000 feet MSL.
h) Applicable Oxygen
Requirements are established
and complied with.
OPERATIONAL
PROCEDURES
1. Ensure that Lavatory (LAV)
Waste water is drained,
2. Determine if flight duration is
acceptable with toilet
unusable,
3. Secure lavatory door(s) and
placard ‘INOPERATIVE, DO
NOT USE’, and
4. Reference Table 1, Configure
Aircraft for Unpressurized
Flight.
38 - WATER/WASTE
Page 3
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8d - 12/12/2013
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
38 - WATER/WASTE
2)
Lavatory Wastes
System (except
Plug Assembly)
MAINTENANCE
PROCEDURES
4. Remarks and Exceptions
C
1
0
(O) May be inoperative provided:
a) Associated components and
water supply are drained, and
b) Procedures are established to
ensure the system is not
serviced or used.
OPERATIONAL
PROCEDURES
1. Ensure associated
components and water supply
are drained, and
2. Establish procedures to
ensure the system is not
used.
38 - WATER/WASTE
Page 4
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Table 1
Configure Aircraft for Unpressurized Flight
38 - Water/Waste
Chapter
38 Para.
Item
10-2-1, & Stated in each
10-3-1
listed paragraph
OPERATIONAL
PROCEDURES
Perform the following steps for unpressurized low-level flight:
1. Prior to the first flight of the day and before engine and APU start, confirm Ram Air and Dump
Valve, or Vent Valve (Post Mod. 25G726A/C) are operative. Ram Air Valve movement can be
heard from Rear Equipment Bay when DUMP VALVE, or VENT VALVE (Post Mod. 25G726A/C)
is selected OPEN.
2. Configure the aircraft for unpressurized flight:
•
Select DUMP VLV, or VENT VALVE (Post Mod. 25G726A/C) fully OPEN.
•
F/DK VLV positioned as required.
3. Operate at or below 15,000 feet MSL.
4. Comply with FAR 91.211 or FAR 135.89 and FAR 131.157.
Passenger Oxygen Masks will deploy automatically when the cabin altitude reaches 12,000 feet MSL
+/- 500 feet.
The Passenger Supply Valve may be selected closed to prevent passenger oxygen mask
deployment, provided the aircraft is operated at or below 10,000 feet MSL or the passenger cabin has
no occupants.
NOTE
Special attention should be given to planning low altitude flights.
38 - WATER/WASTE
Page 5
Mar.2014
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM
EQUIPMENT LIST
Chapter 45---CMC
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 7 - 09/07/2007
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
45 - CENTRAL
MAINTENANCE
COMPUTER
00-1
4. Remarks and Exceptions
Maintenance
Diagnostic
Computer (MDC)
D
1
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
0
(Pro Line 21 only)
45 - CENTRAL MAINTENANCE SYSTEM
Page 1
Nov.2007
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
46---Information Systems
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8 - 02/18/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
46 - INFORMATION
SYSTEMS
10
***
Electronic Flight
Bag System (EFB)
4. Remarks and Exceptions
C
-
0
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Operations are to be conducted in
accordance with FAA approved
EFB Policy and Procedures
Manual.
(O) May be inoperative provided
alternate procedures are
established and used to ensure all
information associated with the
flight is available in current and
appropriate form.
Note
If alternate source is electronic,
dual redundancy is required for
operation.
Any function, program or document
which operates normally may be
used.
1)
***
Power Connection
(Class 1 & 2)
C
-
0
(O) May be inoperative provided
alternate procedures are
established and used.
2)
***
Mounting Device
(Class 2)
C
-
0
(M) (O) May be inoperative
provided:
a) The associated EFB and
hardware is secured by an
alternate means or removed
from the aircraft, and
b) Alternate procedures are
established and used.
Operations are to be conducted in
accordance with FAA approved
EFB Policy and Procedures
Manual.
Remove or secure EFB mounting
device to assure the device does
not interfere with Normal or
Emergency crew duties.
Operations are to be conducted in
accordance with FAA approved
EFB Policy and Procedures
Manual.
46 - INFORMATION SYSTEMS
Page 1
Feb.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8 - 02/18/2008 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
46 - INFORMATION
SYSTEMS
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
3)
***
Data Connectivity
(Class 2)
C
-
0
(O) May be inoperative provided
alternate procedures are
established and used.
Operations are to be conducted in
accordance with FAA approved
EFB Policy and Procedures
Manual.
4)
***
EFB Printer
C
-
0
(O) May be inoperative provided all
affected pertinent flight information
is printed and available prior to
departure.
Operations are to be conducted in
accordance with FAA approved
EFB Policy and Procedures
Manual.
20
Integrated Flight
Information
System
C
1
0
(Pro Line 21
IFIS-5000)
1)
File Server Unit
(FSU)
(FSU INOP)
Message)
46 - INFORMATION SYSTEMS
Page 2
Feb.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8 - 02/18/2008 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
46 - INFORMATION
SYSTEMS
***
4. Remarks and Exceptions
C
2
0
(O) One or both may be inoperative
provided alternate procedures are
established and used to ensure all
information associated with the
flight is available at the pilot station
in current and appropriate form.
Note
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Traditional paper data will be
carried and used for intended
flight, or
2. Operations are to be
conducted in accordance with
FAA approved EFB Policy and
Procedures Manual.
If alternate source is electronic,
dual redundancy is required for
operation.
2)
Cursor Control
Panel (CCP)
C
2
0
(O) One or both may be inoperative
provided alternate procedures are
established and used to ensure all
information associated with the
flight is available at the pilot station
in current and appropriate form.
3)
***
Communications
Management Unit
(CMU)
C
1
0
(O) May be inoperative provided
alternate procedures are
established and used for Aircraft
Communication Addressing and
Reporting System (ACARS) and
Universal Weather Radar (WX)
inoperative.
1. Traditional paper data will be
carried and used for intended
flight, or
2. Operations are to be
conducted in accordance with
FAA approved EFB Policy and
Procedures Manual.
Weather data for the intended flight
path including alternates shall be
obtained prior to departure.
46 - INFORMATION SYSTEMS
Page 3
Feb.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8 - 02/18/2008 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
46 - INFORMATION
SYSTEMS
4. Remarks and Exceptions
4)
***
Third VHF Comm
Radio
C
1
0
5)
***
XM Satellite
Weather System
C
1
0
(O) May be inoperative provided
alternate procedures are
established and used for ACARS
and Universal WX inoperative.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Weather data for the intended flight
path including alternates shall be
obtained prior to departure.
46 - INFORMATION SYSTEMS
Page 4
Feb.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
49---Airborne Auxiliary Power
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 7 - 09/07/2007
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
49 - AIRBORNE
AUXILIARY POWER
4. Remarks and Exceptions
00-1
Auxiliary Power
Unit (APU)
C
1
0
May be inoperative provided APU is
not used.
10-1
APU Air/Load
Control Valve
C
1
0
(M) (O) May be inoperative
provided:
a) Air valve is secured closed,
and
b) APU air switch remains OFF.
NOTE
If APU and APU Generator operate
normally, APU may be used to
provide electric power.
C
1
0
May be inoperative provided APU is
not used.
10-2
APU
Instrumentation
1)
C
Revolutions Per
Minute (RPM)/
Exhaust Gas
Temperature (EGT)
Indicators
(T62T-40C8D/
T62T-40C8D1 and
36-150/92/100/ APU
Only)
2
0
May be inoperative provided APU is
not used.
MAINTENANCE
PROCEDURES
1. Locate APU air valve in Rear
Equipment Bay. Check valve
mechanical indicator
CLOSED.
2. Disconnect electrical
connections, bag and stow.
3. In cockpit locate APU Air
Valve Switch and insure that it
is OFF.
4. Place Inoperative ‘INOP’
Placard at APU air valve
switch.
OPERATIONAL
PROCEDURES
1. Do not use APU bleed air.
2. If APU and APU generator are
operational, they may be
used.
49 - AIRBORNE AUXILIARY POWER
Page 1
Nov.2007
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 7 - 09/07/2007
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
49 - AIRBORNE
AUXILIARY POWER
4. Remarks and Exceptions
2)
Ampere (Amp)
Meter/Load Meter
C
1
0
May be inoperative provided APU is
not used.
30-2
***
APU Operating
Cycle Recorder
C
1
0
(O) May be inoperative provided an
alternate procedure for recording
APU operating cycles is established
and used.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Record APU cycles used in APU
logbook.
49 - AIRBORNE AUXILIARY POWER
Page 2
Nov.2007
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Chapter 21-10- Through 60--Air Conditioning
00
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
52 - DOORS
4. Remarks and Exceptions
11-1
Main Entry Door
Unlock Indication
System
C
1
0
(O) May be inoperative provided
door is both visually and manually
verified to be fully closed and
locked before each departure.
25-1
C
Rear Baggage
Pannier/External
Baggage
Compartment (EBC)
Door Unlock
Indications
-
0
(O) May be inoperative OFF
provided door(s) is/are visually and
manually verified fully closed and
locked before each departure.
C
-
0
(M) (O) May be inoperative ON
provided:
a) System is deactivated, and
b) Door(s) is visually and
manually verified fully closed
and locked before each
departure.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Prior to each departure, close and
lock door and visually confirm the
handle is in the locked position and
that each (6) lock is seated.
1. Prior to each departure,
• Open Left Hand (LH) Pannier
Door,
• Operate latching handle
checking for extension and
retraction of all three (3)
latching pins, and
• Close and latch door.
2. Repeat above bulleted steps
for Right Hand (RH) Pannier
Door (if installed).
1. Gain access to Connectors
‘UL’ and UK’ through Access
Panel F162 behind Baggage
Pannier.
2. Remove wires ‘K’ and ‘V’ from
both connectors, cap, and
stow.
3. Check that indication is OFF.
1. Prior to each departure,
perform the following:
• Open LH Pannier Door,
• Operate latching handle
checking for extension and
retraction of all three (3)
latching pins, and
• Close and latch door, and
2. Repeat above bulleted steps
for RH Pannier Door (if
installed).
52 - DOORS
Page 1
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
52 - DOORS
Series 750
25-2
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
1. Gain access to Connector
‘UZ’ through Access Panel
F162 behind Baggage
Pannier.
2. Remove wires ‘K’ and ‘V’ from
connector, cap, and stow.
3. Check that indication is OFF.
OPERATIONAL
PROCEDURES
1. Prior to each departure,
perform the following:
• Open LH Pannier Door,
• Operate all latches checking
for extension and retraction of
latching pins, and
• Close and latch door.
C
-
0
(M) (O) May be inoperative ON
provided:
a) System is deactivated, and
b) Door is visually and manually
verified fully closed and
locked before each departure.
Rear Baggage
C
Pannier/EBC Hatch
Unlock Indication
1
0
(O) May be inoperative OFF
provided associated hatch is both
visually and manually verified fully
closed and locked before each
departure.
C
1
0
(M) (O) May be inoperative ON
provided:
a) System is deactivated, and
b) Hatch is both visually and
manually verified full closed
and locked before each
departure.
1. Gain access to Connector ‘UL’ Prior to each departure,
1. Open the lower hatch door
through Access Panel F162
and visually confirm the upper
behind Baggage Pannier.
hatch is installed and locked.
2. Remove wires ‘H’ and ‘T’ from
2. Close and latch the lower
connector, cap, and stow.
hatch door.
3. Check that indication is OFF.
C
1
0
(M) (O) May be inoperative ON
provided:
a) System is deactivated, and
b) Hatch is both visually and
manually verified full closed
and locked before each
departure.
Prior to each departure,
1. Gain access to Connector
1. Open the lower hatch door
‘UZ’ through Access Panel
and visually confirm the upper
F162 behind Baggage
hatch is installed and locked.
Pannier.
2. Close and latch the lower
2. Remove wires ‘H’ and ‘T’ from
hatch door.
connector, cap, and stow.
3. Check that indication is OFF.
Series 750
Prior to each departure,
1. Open the lower hatch door
and visually confirm the upper
hatch is installed and locked.
2. Close and latch the lower
hatch door.
52 - DOORS
Page 2
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8c - 10/17/2012 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
52 - DOORS
70-3
***
Optional Door or
Hatch Unlocked
Annunciator
4. Remarks and Exceptions
C
1
0
(O) May be inoperative provided
annunciator is not visibly
illuminated and associated door(s)
or hatch(es) are visually and
manually verified fully closed and
locked before each departure.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
Prior to each departure, confirm
both visually and manually that
affected door(s) are closed and
latched.
NOTE
Optional doors/hatches approved
for relief under the above include
the following: Remote Refuel Panel
Door; Single Point Refuel Door;
Ventral Tank Gravity Refuel Door;
Rear Equipment Bay Door; and
Lavatory Service Panel Door.
70-4
Right and Left
Avionics Access
Doors
Deleted Revision 5.
70-5
***
Door Locks
D
-
0
70-6
***
Ramp Guard System D
-
0
(O) May be inoperative provided
checks are made to ensure the lock
does not interfere with normal
operation of the latch.
Confirm the inoperative lock does
not prevent the affected door or
hatch from being properly closed
and latched.
52 - DOORS
Page 3
Dec.2012
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
56---Windows
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8 - 02/18/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
56 - WINDOWS
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
10-1
Windscreen (Panel
“A”) (Series 1
Through 700)
C
-
-
(M) (O) May be delaminated
provided:
a) Visibility through the affected
windscreen(s) is acceptable to
the crew,
b) Airplane is not operated in
known or forecast icing
conditions,
c) Associated SCREEN HEAT
Control (CTL) circuit breaker
is pulled and collared, and
d) AFM limitations are observed.
1. Locate affected SCREEN
HEAT CTL circuit breaker.
2. Pull and collar circuit breaker.
3. Place INOP placard adjacent
to affected switch.
1. Confirm that delamination
does not affect visibility.
2. Plan flight to avoid flight in
known or forecast icing
conditions.
3. Review AFM low altitude
airspeed limitations for
windscreen heat inoperative.
10-2
Windscreens “A”
or “B” (Series 750,
800, 800XP, 850XP
and 900XP)
C
-
-
(M) (O) One “A” or “B” windscreen
may be delaminated provided:
a) Visibility through the affected
windscreen is acceptable to
the crew, and vision is not
impaired on the remaining
windscreens,
b) Airplane is not operated in
known or forecast icing
conditions,
c) Associated SCREEN HEAT
CTL circuit breaker is pulled
and collared, and
d) AFM limitations are observed.
1. Locate affected SCREEN
HEAT CTL circuit breaker.
2. Pull and collar circuit breaker.
3. Place INOP placard adjacent
to affected switch.
1. Confirm that delamination
does not affect visibility.
2. Plan flight to avoid flight in
known or forecast icing
conditions.
3. Review AFM low altitude
airspeed limitations for
windscreen heat inoperative.
56 - WINDOWS
Page 1
Feb.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
73---Engine Fuel & Control
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 7 - 09/07/2007
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
73 - ENGINE FUEL &
CONTROL
4. Remarks and Exceptions
22-1
Engine
Synchronizer
System (Series 1
Through 800A
With TFE-731
Engines Only)
C
1
0
(O) May be inoperative provided:
a) System is selected “OFF”,
b) Automatic Performance
Reserve (APR) system is not
armed, and
c) AFM limitations are observed.
22-2
Top Temperature
Control System
(Viper Engine
Only)
C
2
1
(M) (O) One may be inoperative
provided:
a) Associated switch remains
OFF,
b) Associated circuit breakers
are pulled and collared, and
c) Associated JPT indicator is
operative.
3.
Engine Electronic
Fuel Computer
System (Series 1
Through 800
With TFE-731
Engines Only)
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Prior to flight, review Aircraft
AFM procedures with APR
inoperative.
2. Observe limitations with APR
inoperative.
3. Select engine synchronization
(synch) OFF and do not use.
4. Install ‘INOP’ placard adjacent
to engine synch switch.
Pull and collar affected TOP
Temperature (TEMP) CONTROL
circuit breaker.
1. Select associated system
OFF.
2. Confirm normal operation of
associated JPT indication.
Deleted, Revision 2.
73 - ENGINE FUEL & CONTROL
Page 1
Nov.2007
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 7 - 09/07/2007 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
73 - ENGINE FUEL &
CONTROL
4. Remarks and Exceptions
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
23-1
***
APR Computer
System (Series 1
Through 800A
With TFE-731
Engines Only)
C
1
0
(O) May be inoperative provided:
a) AFM performance limitations
are observed,
b) APR system is selected OFF,
and
c) Procedures for monitoring
engine limitations are
established and used.
1. Prior to flight, review AFM
procedures with APR
inoperative.
2. Observe limitations with APR
inoperative.
3. Select APR OFF and do not
use.
4. Install Inoperative (‘INOP’)
placard adjacent to APR
switch.
24-1
Automatic Thrust
Limiter System
(Viper Engines
Only)
C
2
0
(O) May be inoperative provided
Revolutions Per Minute (RPM) and
JPT can be controlled manually.
Confirm that takeoff power can be
set manually.
31-1
Fuel Flow
Indicators
C
2
1
(O) One may be inoperative
provided:
a) Associated RPM and JPT/ITT
indicators are operative,
b) All fuel quantity indicators are
operative, and
c) A fuel monitoring procedure is
established and used.
1) Confirm associated RPM and
ITT indicators operate
normally,
2) Confirm all fuel quantity
indicators are operative, and
3) During flight, monitor engine
gauges to ensure that both
engines are operating
normally,
4) Fuel consumption will be
monitored to ensure that
abnormal fuel imbalances do
not occur.
5) Fuel flow may be available on
the Fuel Management page in
the FMS.
73 - ENGINE FUEL & CONTROL
Page 2
Nov.2007
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
74---Ignition
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 7 - 09/07/2007
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
74 - IGNITION
10-1
Ignition Systems
4. Remarks and Exceptions
B
4
3
(O) One igniter on one engine may
be inoperative provided:
a) Aircraft is not operated in
visible moisture or from
contaminated runways, and
b) Aircraft is not operated in
known or forecast icing
conditions.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Prior to each flight, confirm
that only one igniter is
inoperative on only one
engine.
• With battery power only on,
select Ignition “ON”, and
• Then listen to each engine for
two distinct “snaps”. If only
one distinct “snap” is noticed
only one igniter is working on
that engine.
2. Ensure that the aircraft is not
operated in visible moisture or
from wet or contaminated
runways, and
3. Aircraft is not operated in
known or forecast icing
conditions.
4. Plan flights to avoid any of the
above mentioned conditions.
74 - IGNITION
Page 1
Nov.2007
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
77---Engine Indicating
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 7 - 09/07/2007
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
77 - ENGINE INDICATING
4. Remarks and Exceptions
10-2
Engine Indications
1)
N1 Indicator Digital
Readouts
a)
Digital Readout(s)
(Except Pro Line
21-Equipped
Aircraft)
C
-
0
2)
N2/RPM Indicators
C
2
1
a)
Digital Readout(s)
C
-
0
3)
Interstage Turbine
Temperature (ITT) /
Exhaust Gas
Temperature (EGT)
Indicators
a)
Digital Readout(s)
(Except Pro Line
21-Equipped
Aircraft)
C
-
0
32-1
Power Loss
Indicator Systems
(Viper Engine
Only)
C
2
32-2
Above 92% Light
Systems (Viper
Engine Only)
C
2
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
(O) One may be inoperative
provided N1 and Fuel Flow
Indicators for the associated engine
are operative.
Prior to each departure, confirm
that the N1 and Fuel Flow
Indicators for the associated engine
are operative.
0
(O) May be inoperative provided all
remaining engine indicating
systems are operative.
Prior to each departure, confirm all
remaining engine indicating
systems are operative.
0
(O) May be inoperative provided
alternate procedures are
established and used.
Closely monitor engine RPM,
especially when setting takeoff and
climb power.
77 - ENGINE INDICATING
Page 1
Nov.2007
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 7 - 09/07/2007 (Continued)
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
77 - ENGINE INDICATING
32-3
Climb Power
Annunciators
(TFE-731 Engines
Except Pro Line 21
Equipped Aircraft)
4. Remarks and Exceptions
C
2
0
(O) May be inoperative provided
alternate procedures are
established and used.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Ensure climb power does not
exceed AFM Limitations.
2. Non-Flying Pilot will monitor
and adjust climb power as
needed.
3. Captain will brief procedure to
be used before each
departure.
77 - ENGINE INDICATING
Page 2
Nov.2007
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
78---Engine Exhaust
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8 - 02/18/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
78 - ENGINE EXHAUST
30-1
Thrust Reversing C
System (Series 700
and 800, If
Installed, and 750,
800XP, 850XP and
900XP)
4. Remarks and Exceptions
2
0
MAINTENANCE
PROCEDURES
Refer to Table 1 for maintenance
(M) (O) May be inoperative
procedure.
provided:
a) No damage to the thrust
reverser system exists which
would adversely affect
operation of the airplane, and
b) A procedure is established
and used to ensure that the
associated thrust reverser(s)
is disabled and pinned in the
stowed (forward thrust)
position.
OPERATIONAL
PROCEDURES
1. Confirm that the associated
(M) procedure for disabling
thrust reverser(s) in the
stowed position is
accomplished, and
2. Confirm that no apparent
damage to the thrust reverser
system exists which would
adversely affect operation of
the airplane, and
3. Plan flight to ensure that safe
landings can be made at the
airports to be used with the
thrust reverser(s) inoperative
(INOP).
NOTE
Care should be exercised when
advancing single reverse thrust to
avoid controllability effects.
78 - EXHAUST
Page 1
Feb.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 8 - 02/18/2008
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
78 - ENGINE EXHAUST
30-2
Thrust Reverser
Indicating
Annunciators
4. Remarks and Exceptions
C
4
0
(M) (O) May be inoperative
provided procedures are
established and used to ensure
associated thrust reverser(s) is
disabled and pinned in the stowed
(forward thrust) position.
MAINTENANCE
PROCEDURES
Refer to Table 1 for maintenance
procedure.
OPERATIONAL
PROCEDURES
1. Confirm that the associated
(M) procedure for disabling
thrust reverser(s) in the
stowed position is
accomplished, and
2. Plan flight to ensure that safe
landings can be made at the
airports to be used with the
thrust reverser(s) inoperative.
NOTE
Close attention should be paid to
the appropriate brake cooling times
as set forth in the Normal
Procedures section of the Flight
Manual.
78 - EXHAUST
Page 2
Feb.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Table 1
Thrust Reverser Maintenance Procedure
78 - EXHAUST
30-2
Thrust Reverser
Indicating
Annunciators
1)
Series 700 and
800, (If Installed)
2)
Series 750, 800XP,
850XP and 900XP
MAINTENANCE
PROCEDURES
For NORDAM (Dee Howard) Clamshell Thrust Reversers, perform the following steps:
a) Verify that the airplane bus bars are de-energized and that no external electrical power is
connected.
b) Open and collar the Thrust Reverser (TR) circuit breakers (Refer to Table 2).
c) Remove the outboard fairing from each TR.
d) Verify that the TR’s are stowed and latched.
e) On the outboard of each engine install the two latch lock pins through the latch box cover and
the latch box.
NOTE
It may be necessary to remove the lockwire from the bolts in the latch box.
f) Attach the two latch lock pins with screws.
g) Lockwire the bolts in the latch box and route the wire over the lock pins.
h) Inspect visible operating mechanism for evidence of damage.
i) Install the outboard fairing to each TR.
j) Put a warning placard over the annunciators in the flight compartment reading, ‘THRUST
REVERSER INOP’.
78 - EXHAUST
Page 3
Feb.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Table 1
Thrust Reverser Maintenance Procedure (Continued)
78 - EXHAUST
30-2
Thrust Reverser
Indicating
Annunciators
MAINTENANCE
PROCEDURES
For Aeronca Cascade Thrust Reversers perform the following steps:
a) Remove the inboard and outboard pneumatic latch access panels.
NOTE
Before the inboard access panel can be removed, the detachable panels on the engine mounting
pylon, adjacent to the pneumatic latch panel, must first be removed.
b) At each pneumatic latch-mounted switch assembly, verify that the switch operating plunger is
fully up. Insert a stop pin and push the stop pin fully home.
NOTE
The stop pin is retained by its handling loop abutting the access panel when the panel is closed.
c) At sub-panel DA-E open and collar circuit breaker C1 (LH system) and/or D1 (RH system).
d) If both systems are to be inhibited, open and collar circuit breakers C4 and D4 (3A) and E1 (5A).
e) Inspect visible mechanism for indications of damage.
f) Check that blocker doors are correctly stowed and free of damage.
g) Put a warning placard over the annunciators in the flight compartment reading, ‘THRUST
REVERSER INOP’.
78 - EXHAUST
Page 4
Feb.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
Table 2
Thrust Reverser Circuit Breakers
No. 1 Thrust Reverser Ident
Panel DA-D
No. 2 Thrust Reverser Ident
Panel DA-D
LH DEPLOY
RH DEPLOY
LH ANNUN
RH ANNUN
LH STOW
RH STOW
78 - EXHAUST
Page 5
Feb.2008
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
79---Engine Oil
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 7 - 09/07/2007
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
79 - ENGINE OIL
30-1
Oil Pressure Low
Warning Lights/
Annunciators
4. Remarks and Exceptions
C
2
0
(O) May be inoperative provided:
a) Associated Oil Pressure and
Oil Temperature Indicators are
operative,
b) Associated Oil Tank is
serviced to recommended
capacity before each
departure, and
c) There is no evidence of above
normal oil consumption or
leakage.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1. Confirm associated Oil
Pressure and Oil Temperature
indicators are operative,
2. Associated oil tank is serviced
to recommended capacity
before each departure, and
3. There is no evidence of above
normal oil consumption or
leakage.
4. Monitor the oil pressure gauge
during flight to ensure engine
limitations are not exceeded.
79 - OIL
Page 1
Nov.2007
HAWKER 125 (SERIES 1 THROUGH 900XP) M&O FOR MINIMUM EQUIPMENT
LIST
80---Starting
Maintenance and Operational Procedures
for Federal Aviation Administration Master Minimum Equipment List - Revision No: 7 - 09/07/2007
1. SYSTEM,
Sequence Numbers &
Item
Repair Category
2. Number Installed
3. Number Required for Dispatch
80 - STARTING
4. Remarks and Exceptions
00-1
Starter Power
Available
Annunciator
(TFE-731 Engines
Only)
C
1
0
00-2
Starter Select Light
(Viper Engines
Only)
C
1
0
00-3
Starter Operating
Annunciators
(TFE-731 Engines
Only)
C
2
0
(O) May be inoperative provided:
a) Procedures are established
and used to assure that start
power and EXT PWR
switches are disengaged
when engine reaches
self-sustaining speed, and
b) Procedures are established
and used to assure that
associated generator(s) is
(are) on line after each start.
MAINTENANCE
PROCEDURES
OPERATIONAL
PROCEDURES
1) Start power and EXT PWR
switches are disengaged
when engine reaches
self-sustaining speed, and
2) Generator is verified to be on
line. (Reference After Start
checklist.)
80 - STARTING
Page 1
Nov.2007