BOEING 737
OPERATIONS MANUAL VOL 1
LIMITATIONS
OPERATIONAL
AIRCONDITIONING AND
PRESSURISATION
Revenue flight: During taxi/takeoff/
landing: escape slide retention bar
installed.
Max differential pressure:
Maximum Operating Altitude: 35,000 ft.
Operating differential pressure:
7.8 ± .1 psi
Maximum takeoff and landing altitude:
8,300 ft.
Max cabin differential pressure
for T.O./landing:
0.125 psi
Runway slope limits: ± 2%
AUTOPILOT (A/P) FLIGHT
DIRECTOR (F/D) SYSTEM
8.65 psi
Max T.O./Landing tailwind: 15 knots
Do not engage autopilot for takeoff
Max speeds : Observe Vmo pointer &
gear/flap placards.
For single channel operation, the autopilot
shall not be engaged below 50 ft agl.
Turbulent airspeed: 280 KIAS/.70M.
Mach trim inoperative: max speed 0.74M
Max x-wind component (demonstrated):
TO/Land; 35 knots
Takeoff with anti-skid inop not certified.
Vmcg/Vmca:
GROSS WEIGHT AND C.G.
Max taxi wt:
53,297 kgs
Max takeoff:
53,070 kgs
May be further restricted by takeoff,
enroute and landing performance.
Max inflight weight:
Flaps 0:
52,844 kgs
Flaps 30/40:
48,080 kgs
Max landing wt:
47,627 kgs
May be further restricted by field length
or climb limit.
Max zero fuel wt:
43,091 kgs
C.G. Limits: Use approved weight and
balance system.
The following weather minima apply:
 Dual channel A/P app/autoland: IIIa
 Duel channel F/D app:
II
 Single channel A/P app:
II
B737 236/…..(Foreign Aircraft)
An autopilot must not remain engaged with
a persistent autopilot warning light.
The autopilot shall not remain engaged
below a hgt 1000 ft above terrain unless
coupled to an ILS G/S and LOC, or
during a go-around.
The autopilot shall be disengaged at not
less than 150 ft AFE during a single
channel coupled approach.
Do not make automatic landings with
flaps 25.
Max autoland wind components:
25 kts H/W, 15 kts X/W, 10 kts T/W.
Decision heights below 100 ft but not
below 50 ft may be used in a dual
channel autopilot approach provided the
max wind components are:
25 kts H/W, 15 kts X/W, 10 kts T/W.
BOEING 737
OPERATIONS MANUAL VOL 1
LIMITATIONS
AUTOPILOT (A/P) FLIGHT
DIRECTOR (F/D) SYSTEM (CONT)
FLIGHT CONTROLS
Max flap extension altitude: 20,000 ft
Do not continue dual channel autopilot
approach below 500 ft AFE without
FLARE-Armed annunciation.
The FD switches shall be OFF for takeoff.
The FD’s shall not be used (but may
remain switched on) below 200 ft
during an ILS approach.
APU
Max EGT: 760C, max cont: 710C
APU bleed & electrical load max alt:
10,000 ft
APU bleed max alt: 17,000 ft
APU electrical load max alt:
35,000 ft
APU bleed valve closed when:
 GND air connected and isolation
valve open.
 Engine # 1 bleed valve open.
 Isolation and engine # 2 bleed
valves open.
APU bleed valve may be open during
engine start, but avoid engine power
above idle.
APU generator limit (ground):
125 amps
APU generator limit (flight):
111 amps
Do not start or shut down APU during
refuelling operations.
Start: 5 min cooling after 2nd start.
1 hr cooling after 3rd start.
ELECTRICAL POWER
Max engine driven generator load:
111 amps
Max CSD oil temp: 157C
Speedbrake usage, minimum recommended
altitude:
500 ft
Alternate flap duty cycle;
Flaps 0-15:
Flaps >15:
5 min off
25 min off
Flap limiting speeds:
1 – 230k
2 – 230k
5 – 225k
10 – 210k
15 – 195k
25 – 190k
30 – 185k
40 – 170k
ALT Flap ext 210k
FUEL
Max temp: 49°C
Min temp: Fuel freeze point + 3°C or
- 45°C, whichever is higher.
-(JetA1 freezes @ -47°C)
Max fuel qty;
Main tanks:
Centre tank:
4,588 kgs each
7,417 kgs
Lateral imbalance between main tanks 1 &
2 must not exceed 680 kgs for taxi,
takeoff and flight and 589 kgs for
landing.
Main tanks 1 & 2 must be full if center
tank contains more than 453 kgs.
ICE AND RAIN PROTECTION
Engine TAI must be on when Icing
Conditions exist or are anticipated,
except during climb and cruise below
-40° SAT.
BOEING 737
OPERATIONS MANUAL VOL 1
LIMITATIONS
ICE AND RAIN PROTECTION
(CONT)
PERFORMANCE DATA
COMPUTER SYSTEM (PDCS)
Min N1 RPM for operating in Icing
Conditions except for landing:
40% when TAT between 0° and 10°C;
55% when TAT below 0°C; 70% in
moderate to severe Icing Conditions
when TAT below –6.5°C.
Do not use the PDCS information unless
the engine configuration displayed on
the PDCS is the same as the engine
configuration of the aircraft.
Window heat inop: max speed 250 KIAS
below 10,000 ft.
Pitot heat must be on for takeoff.
HYDRAULIC POWER
Min fuel for ground operation of system
B pumps: 760 kgs in main tank no. 2.
LANDING GEAR
Do not apply brakes until after
touchdown.
Fuel management and range calculation
values presented by the PDCS have
not been evaluated by the FAA or
CAA.
Verify that the representative takeoff EPR
limits displayed on the CDU and EPR
indicators agree with the
predetermined limits obtained from the
Flight Manual.
Verify that the Vref values displayed on
the CDU agree with the predetermined
limits obtained from the Flight Manual
(Flaps 25 Vref is not shown on the
CDU)
PNEUMATICS
Towing: Depressurise A system.
Autobrakes: RTO or OFF for takeoff.
AUTOMATIC FLIGHT CONTROL
SYSTEM (AFCS)
Do not engage the autopilot for takeoff.
B737 236/…..(Foreign Aircraft)
Max external Air
Pressure: 60 psi
Temperature: 232°C
NAVIGATIONAL EQUIPMENT
Weather radar: Do not operate the
weather radar during fuelling, near
fuel spills or people. Warm up the
radar in the STBY position only.
The flight Director switches shall be OFF
for takeoff.
BUG SPEEDS
40 tons
Designation
Flap setting
Speed
Speed+15
Speed+15
2 Eng
App
GA
Vref
V2
40
15
119
119
15° bank
134
134
Full manoeuvre
1 Eng
App
GA
Vref
V2
15
1
130
No Go Area
(+5)135
135
15 deg bank
150
150
Full manoeuvre
BOEING 737
OPERATIONS MANUAL VOL 1
LIMITATIONS
POWER PLANT: JT8D-15, -15A
ALL ENGINES
Ignition: On for takeoff and landing.
Starting pressures – prior to starter
engagement:
Min 30 psi at sea level (decreasing ½
psi/1000’ above sea level)
Max N1 RPM: 102.4%, N2 RPM:
100%
Max EGT:
JT8D-15
Acceleration
(2 minutes):
T.O. (5 minutes):
Max Cont.
(continuous):
Start, Ground
(momentary):
Flight:
Oil press:
580°C
Starter Duty cycle
Normal start: 30 sec on, 60 sec off.
630°C
Slow start: 60 sec on, 60 sec off.
620°C
(2 cycles only, then 5 min cooling)
Motoring (fuel off): 2 min on, 5 min
580°C
cooling.
550°C
620°C
575°C
620°C
630°C
620°C
-15A
55 psi max
40 psi min
Ignition Duty cycle
LOW IGN: continuous.
FLT:
2 min on, 3 min off
2 min on, 23 min off.
Reverse thrust: for ground use only.
Oil temp:
165°C max
130-165°C allowable for
15 min.
130°C max continuous.
POWER PLANT: JT8D-17, -17A
Ignition: On for takeoff and landing.
Max N1 RPM: 102.4%, N2 RPM:
100%
Max EGT:
Acceleration
(2 minutes):
T.O. (5 minutes):
Max Cont.
(continuous):
Start, Ground
(momentary):
Flight:
JT8D-17
-17A
660°C
650°C
660°C
650°C
610°C
610°C
550°C
650°C
575°C
650°C
Oil press:
55 psi max
40 psi min
Oil temp:
165°C max
130-165°C allowable for
15 min.
130°C max continuous.
GENERAL
Speed Limitations
Maximum operating limit speeds:
MMO M0.84
VMO 350 KIAS @ SL
365 KIAS @ 23,500’
Landing Gear speeds:
VLO 235 KIAS (retract)
270/M0.82 (extend)
VLE 320/M0.82 (extended)
Load limitations
Flaps up
Flaps down
+2.5g to –1.0g
+2.0g to 0.0g
CofG limits
FWD limit
Aft limit
5%
30.2%