Removal of the Thrust Recovery Nozzle [IAE]

TASK 78-32-70-000-010-A
Removal of the Thrust Recovery Nozzle

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 1M(3 FT)
No specific	1	BAR LENGTH 60 CM (2 FT) BREAKER
No specific	AR	WARNING NOTICE(S)
IAE1N20023	1	ADAPTER-TORQUE TOOL

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 78-30-00-040-012-A	Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
Thrust Recovery Nozzle

3. Job Set-up
Subtask 78-32-70-941-050-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).

Subtask 78-32-70-010-050-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(2) Put the ACCESS PLATFORM 1M(3 FT) in position.

Subtask 78-32-70-040-050-A ** ON A/C NOT FOR ALL

C. Deactivate the thrust reverser.

WARNING: MAKE SURE THAT THE THRUST REVERSER HYDRAULIC CONTROL UNIT (HCU) IS DEACTIVATED BEFORE YOU DO WORK ON OR AROUND THE THRUST REVERSER. IF THE HCU IS NOT DEACTIVATED, THERE IS A RISK OF UNWANTED THRUST REVERSER OPERATION WHICH CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

(1) Deactivate the thrust reverser hydraulic control unit (HCU) (Ref. AMM TASK 78-30-00-040-012).

Subtask 78-32-70-010-051-A ** ON A/C NOT FOR ALL

D. Open the thrust recovery nozzle.

Thrust Recovery Nozzle ** ON A/C NOT FOR ALL

(1) Install the IAE1N20023 ADAPTER-TORQUE TOOL on a BAR LENGTH 60 CM (2 FT) BREAKER.
(2) Put the IAE1N20023 ADAPTER-TORQUE TOOL into the latch bolt slot (5), (2 places) of the thrust recovery nozzle (1).

NOTE: The IAE1N20023 ADAPTER-TORQUE TOOL must rest evenly in the latch bolt slot (5).

(3) Apply force to the wrench until the latch bolt releases and open the thrust recovery nozzle (1).

4. Procedure
Subtask 78-32-70-020-050-A ** ON A/C NOT FOR ALL

A. Remove the thrust recovery nozzle.

Thrust Recovery Nozzle ** ON A/C NOT FOR ALL

(1) Remove the nuts (6), the washer (7), and cable assembly (4) with the eyebolts (8), that attach the thrust recovery nozzle (1) to the right thrust reverser half.
(2) Remove two cotter pins (3) from each of the three hinge pins (2). Discard the cotter pins.
(3) Remove the three hinge pins (2) which attach the thrust recovery nozzle (1) to the right thrust reverser half.
(4) Remove the thrust recovery nozzle (1).

[Rev.10 from 2021] 2026.04.01 03:29:16 UTC