Removal of the Thrust Reverser Floating hinges [PW11]

TASK 78-30-05-000-801-A
Removal of the Thrust Reverser Floating hinges

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.

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

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
636-3000-9GSE	1	TR THREADS PROTECTOR

B. Referenced Information

REFERENCE	DESIGNATION
TASK 71-00-00-860-833-A	Procedure to Prevent Engine Motoring
TASK 71-13-10-000-801-A	Removal of the Left Engine Fan Cowl Door
TASK 71-13-20-000-801-A	Removal of the Right Fan Cowl Door
TASK 78-30-00-040-805-A	Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-30-06-000-801-A	Removal of the Thrust Reverser Hinge Access Panels
TASK 78-32-01-000-802-A	Removal of the Left Thrust Reverser Half - Engine 1
TASK 78-32-01-000-803-A	Removal of the Left Thrust Reverser Half - Engine 2
TASK 78-32-02-000-802-A	Removal of the Right Thrust Reverser Half - Engine 1
TASK 78-32-02-000-803-A	Removal of the Right Thrust Reverser Half - Engine 2
Thrust Reverser Floating Hinges

3. Job Set-up
Subtask 78-30-05-941-050-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 78-30-05-040-050-A ** ON A/C NOT FOR ALL

B. Deactivation of the Thrust Reverser for 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 maintenance (Ref. AMM TASK 78-30-00-040-805).

Subtask 78-30-05-010-050-A ** ON A/C NOT FOR ALL

C. Get Access

NOTE: You can also do this procedure if you remove the left fan cowl and the left thrust reverser and access the floating hinges above the right thrust reverser door (Ref. AMM TASK 71-13-10-000-801), (Ref. AMM TASK 78-32-01-000-802) and (Ref. AMM TASK 78-32-01-000-803).

(1) Remove the right fan cowl (Ref. AMM TASK 71-13-20-000-801).
(2) Remove the applicable right thrust reverser door (Ref. AMM TASK 78-32-02-000-802) and (Ref. AMM TASK 78-32-02-000-803).
(3) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.

4. Procedure
Subtask 78-30-05-020-050-A ** ON A/C NOT FOR ALL

A. Remove the Thrust Reverser Floating Hinges as follows:

CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.

(1) Remove the forward hinge access panel (451DL) or (461DL) of the left thrust reverser (Ref. AMM TASK 78-30-06-000-801).

NOTE: If you removed the left thrust reverser, remove the forward hinge access panel (452DR) or (462DR) of the right thrust reverser.

(2) Remove the R1 floating hinge assembly (6).

NOTE: You can remove the two floating hinge assemblies (6) and (7) or you can remove only one.

(a) Remove the washer (2), techtron washer (5) and nut (1) from the hinge pin (4) at the R1 hinge position.
(b) Install the 636-3000-9GSE TR THREADS PROTECTOR on the hinge pin (4) at the R1 hinge position.
1 Tighten the 636-3000-9GSE TR THREADS PROTECTOR manually.
(c) Remove the hinge pin (4) from the R1 hinge position.
(d) Remove the R1 floating hinge assembly (6) from between the engine and the pylon.
(e) Remove the 636-3000-9GSE TR THREADS PROTECTOR from the hinge pin (4).
(3) Remove the R2 floating hinge assembly (7).
(a) Remove the washer (2), techtron washer (3) and nut (1) from the hinge pin (4) at the R2 hinge position.
(b) Install the 636-3000-9GSE TR THREADS PROTECTOR on the hinge pin (4) at the R2 hinge position.
1 Tighten the 636-3000-9GSE TR THREADS PROTECTOR manually.
(c) Remove the hinge pin (4) and techtron washer (3) from the R2 hinge position.
(d) Remove the R2 floating hinge assembly (7) from between the engine and the pylon.
(e) Remove the 636-3000-9GSE TR THREADS PROTECTOR from the hinge pin (4).

[Rev.10 from 2021] 2026.04.01 13:12:49 UTC