Deactivation of the Thrust Reverser for Flight [PW11]

TASK 78-30-00-040-806-A
Deactivation of the Thrust Reverser for Flight

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.

WARNING: WEAR APPLICABLE PERSONAL PROTECTIVE EQUIPMENT (PPE) WHEN YOU DO THIS TASK. BEFORE YOU USE PPE, READ, UNDERSTAND AND OBEY ALL INSTRUCTIONS FOR ITS USE. THESE INSTRUCTIONS INCLUDE INSTRUCTIONS FROM THE MANUFACTURER, YOUR EMPLOYER AND GOVERNMENT REGULATIONS. YOU CAN GET INJURED IF YOU DO NOT USE PPE. GET INSTRUCTIONS FROM YOUR EMPLOYER ON WHICH PPE IS NECESSARY.

ZONE: 400

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	WARNING NOTICE(S)
No specific	Torque wrench: range to between 35 and 31.5 lbf.in (0.40 and 0.36 m.daN )

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS

C. Referenced Information

REFERENCE	DESIGNATION
TASK 71-00-00-860-833-A	Procedure to Prevent Engine Motoring
TASK 71-13-00-010-802-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-802-A	Closing of the Fan Cowl Doors
TASK 78-30-00-040-805-A	Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-32-36-000-801-A	Removal of the TRAS Lockout Pin Access Panel
TASK 78-32-36-400-801-A	Installation of the TRAS Lockout Pin Access Panel
Deactivation/Reactivation of the Thrust Reverser for Flight
Deactivation of the Thrust Reverser for Flight - Lockout Cover

3. Job Set-up
Subtask 78-30-00-941-086-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).

Subtask 78-30-00-040-069-A ** ON A/C NOT FOR ALL

B. Deactivation of the Thrust Reverser for Ground Maintenance

WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.

(1) Do the deactivation of the thrust reverser system for ground maintenance (Ref. AMM TASK 78-30-00-040-805).

Subtask 78-30-00-010-105-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802) or the oil tank access door on the left fan cowl door.

4. Procedure
Subtask 78-30-00-040-070-A ** ON A/C NOT FOR ALL

A. Deactivation of the Thrust Reverser for Flight

WARNING: MAKE SURE THAT YOU DEACTIVATE THE TWO THRUST REVERSER DOORS ON THE SAME ENGINE FOR FLIGHT. IF ONE THRUST REVERSER DOOR DEPLOYS DURING FLIGHT, INJURY AND/OR DEATH CAN OCCUR.

(1) Remove the screw (1) that attaches the translating sleeve lockout pins (2) in the double-clamp (3).
(2) Open the double-clamp (3) and remove the translating sleeve lockout pins (2) from the fan case.
(3) Install the screw (1) back on the double-clamp (3).
(4) TORQUE the screw (1) to between 35 and 31.5 lbf.in (0.40 and 0.36 m.daN )

.
(5) Remove the two bolts (4) and the lockout cover (5) from the latch beam (Ref. AMM TASK 78-32-36-000-801).
(6) Put the translating sleeve lockout pin (2) in the latch beam.
(7) Turn the lockout cover (5) so the lockout pin hole lines up with the translating sleeve lockout pin (2). See Sheet 1 of the figure:

Deactivation/Reactivation of the Thrust Reverser for Flight ** ON A/C NOT FOR ALL

(8) Install the lockout cover (5) on the translating sleeve lockout pin (2) and the latch beam with the two bolts (4) (Ref. AMM TASK 78-32-36-400-801).

NOTE: The lockout cover (5) will not be flush with the surface of the latch beam. This is the correct configuration. See the figure:

Deactivation of the Thrust Reverser for Flight - Lockout Cover ** ON A/C NOT FOR ALL

(9) Do steps 4.A.(5) thru 4.A.(8) for the other thrust reverser door on the same engine.
(10) Put the Hydraulic Control Unit (HCU) in the inhibited position.

WARNING: MAKE SURE THE HYDRAULIC CONTROL UNIT (HCU) IS IN THE INHIBITED POSITION WHILE THE THRUST REVERSER IS DEACTIVATED FOR FLIGHT. IF THE HCU IS NOT IN THE INHIBITED POSITION, THE TWO TRANSLATING SLEEVES ON THE THRUST REVERSER CAN DEPLOY AND INJURY AND/OR DEATH CAN OCCUR.

(a) Make sure the HCU stays in the inhibited position and the locking pin keeps it in place (Ref. AMM TASK 78-30-00-040-805).

5. Close-up
Subtask 78-30-00-860-064-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the oil tank access door on the left fan cowl-door or the fan cowl doors (Ref. AMM TASK 71-13-00-410-802).
(3) Remove the WARNING NOTICE(S) mentioned in the job set-up.

Subtask 78-30-00-710-078-A ** ON A/C NOT FOR ALL

B. On the upper ECAM display unit, make sure that the REV INHIBITED comes into view.

Subtask 78-30-00-860-063-A ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Make an entry in the logbook to record the deactivation of the thrust reverser system.
(2) Put a WARNING NOTICE(S) in position in the cockpit to show that the thrust reverser system is not serviceable for the dedicated engine.

[Rev.10 from 2021] 2026.04.01 03:30:37 UTC