AW139 - RFM - 4D
Document N°
139G0290X002
Supplement 10
Crash Position Indicator
with Deployable ELT
The information contained in this document supplements
the information of the Basic Flight Manual.
For limitations, procedures and performance data not
contained in this Supplement, consult the basic Rotorcraft Flight Manual
SUPPLEMENT 10
CRASH POSITION INDICATOR WITH
DEPLOYABLE ELT
P/N 3G2560F00311
E.A.S.A. Approved
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Supplement 10
Crash Position Indicator
with Deployable ELT
AW139 - RFM - 4D
Document N°
139G0290X002
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AW139 - RFM - 4D
Document N°
139G0290X002
Supplement 10
Crash Position Indicator
with Deployable ELT
SUPPLEMENT 10
CRASH POSITION INDICATOR WITH
DEPLOYABLE ELT
TABLE OF CONTENTS
Page
GENERAL INFORMATION
SECTION 1 - LIMITATIONS
ELT TEST
WEIGHT AND CENTER OF GRAVITY LIMITATION
SECTION 2 - NORMAL PROCEDURES
GENERAL
SECTION 3 - EMERGENCY AND MALFUNCTION
PROCEDURES
EMERGENCY SITUATIONS
SECTION 4 - PERFORMANCE
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LIST OF ILLUSTRATIONS
Page
Figure 1
CPI Control Panel
E.A.S.A. Approved
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Supplement 10
Crash Position Indicator
with Deployable ELT
AW139 - RFM - 4D
Document N°
139G0290X002
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E.A.S.A. Approved
AW139 - RFM - 4D
Document N°
139G0290X002
Supplement 10
Crash Position Indicator
with Deployable ELT
GENERAL INFORMATION
The Crash Position Indicator (CPI) system is a primary radio location
aid to alert Search and Rescue and assist location in the event of an
aircraft distress condition.
The Emergency Locator Transmitter (ELT), mounted on the left hand
side of the tail cone, consists of a locator beacon containing the transmitter and antenna. The beacon, which can be manually or automatically activated, is deployed from the aircraft in the event of a crash
situation, providing full emergency frequency operation at 121.5 MHz
and 406.025 MHz.
The CPI system also comprises of a Beacon Release Unit, System
Interface Unit, Cockpit Control Panel (mounted in the interseat console, Figure 1 ), water activated switch and an Aircraft Identification
Device.
The ELT automatically activates during a crash or aircraft ditching and
transmits the standard swept tone on 121.5 MHz until the battery
power is exhausted, which will typically be 48hrs.
The 406.025 MHz transmitter sends an encoded digital message of
aircraft position, as received from the GPS/FMS aircraft system via
ARINC, and will operate for 24hrs.
Figure 1 CPI Control Panel
E.A.S.A. Approved
Page S10-1
Supplement 10
Crash Position Indicator
with Deployable ELT
AW139 - RFM - 4D
Document N°
139G0290X002
SECTION 1 - LIMITATIONS
ELT TEST
The Self Test function of the ELT should not be carried out more frequently than a monthly check.
Operation of the Self Test function should only be carried out after the
nearest Air Traffic Control establishment has been notified
WEIGHT AND CENTER OF GRAVITY LIMITATION
After installation of the CPI the new empty weight and center of gravity
position must be determined.
No change to weight and center of gravity limitations
SECTION 2 - NORMAL PROCEDURES
GENERAL
CAUTION
Confirm, prior to carrying out an ELT Self
Test function, when the last check was carried out as, if carried out more frequently
than a monthly check, battery life will be
shortened.
Note
Prior to self test activation the nearest Air
Traffic Control establishment should be notified as the distress signals transmitted will
be considered as valid
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E.A.S.A. Approved
AW139 - RFM - 4D
Document N°
139G0290X002
ELT Self Test
Supplement 10
Crash Position Indicator
with Deployable ELT
— On CPI CONTROLLER press
the TEST/RESET button. Confirm both TX/TEST and BEACON GONE lights illuminate
and the TX/TEST light flashes
in synchronisation with the
audio tone on VHF radio,
121.5 MHz. The lights should
then extinguish.
SECTION 3 - EMERGENCY AND MALFUNCTION
PROCEDURES
EMERGENCY SITUATIONS
The activation and release of the beacon is automatic for crash conditions or ditching, however, manual operation can be carried out at the
Pilot’s discretion.
Manual Activation of
beacon transmission
— On CPI CONTROLLER, lift
guard and operate TRANSMIT
switch. Confirm TX/TEST light
illuminates and audio tone
heard.
Note
Transmission may be stopped by pressing
TEST/RESET button
Manual Activation of
beacon transmission
and beacon release
— On cockpit control panel, lift
guard and operate DEPLOY
switch. Confirm TX/TEST andBEACON GONE lights illuminate.
SECTION 4 - PERFORMANCE
No change
E.A.S.A. Approved
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Supplement 10
Crash Position Indicator
with Deployable ELT
AW139 - RFM - 4D
Document N°
139G0290X002
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