Installation of the Thrust Reverser Cowl Fitting at RIB3

TASK 54-57-17-400-002-A
Installation of the Thrust Reverser Cowl Fitting at RIB3

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 410
ZONE: 420
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	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.06LDG2)	Non Hardening Jointing Putty-High Temp. Area - Structure

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
410	ENG 1 PYLON BOX AND FORWARD FAIRING
420	ENG 2 PYLON BOX AND FORWARD FAIRING
415AL, 415AR, 425AL, 425AR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 54-51-21-400-001-A	Installation of the Pylon Lateral Access-Doors
Thrust Reverser Cowl Fitting at RIB3
FOR [1000EM1] (ENGINE-1)
TASK 78-32-01-400-010-A	Installation of the Left Thrust Reverser Half - Eng No. 1
TASK 78-32-03-400-010-A	Installation of the Right Thrust Reverser Half - Eng No. 1
FOR [1000EM2] (ENGINE-2)
TASK 78-32-02-400-010-A	Installation of the Left Thrust Reverser Half - Eng No. 2
TASK 78-32-04-400-010-A	Installation of the Right Reverser Half - Eng. No. 2

3. Job Set-up
Subtask 54-57-17-860-051-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the access platform and the WARNING NOTICE(S) are in position.

4. Procedure
Subtask 54-57-17-420-051-A ** ON A/C NOT FOR ALL

A. Installation of the Fitting at RIB3

Thrust Reverser Cowl Fitting at RIB3 ** ON A/C NOT FOR ALL

(1) If you install new reverser fittings, do a dimensional check of the new and the used reverser fittings.
(2) Obey the location and thickness of the peel washers (17) recorded at the removal.
(3) Put the shim (14) in the correct position on the pylon.
(4) Put the fitting (13) and the thrust reverser cowl fitting (12) in position.
(5) Install the washers (11) on the bolts (10).
(6) Install the bolts (10) with Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) .
(7) Install the washers (15) and the nuts (16).
(8) Tighten the nuts (16).

5. Close-up
Subtask 54-57-17-420-052-A ** ON A/C NOT FOR ALL

A. Installation of Components
(1) Install the thrust reverser half doors:
(a) FOR [1000EM1] (ENGINE-1)
451AL, 452AR
(Ref. AMM TASK 78-32-01-400-010), (Ref. AMM TASK 78-32-03-400-010).
(b) FOR [1000EM2] (ENGINE-2)
461AL, 462AR
(Ref. AMM TASK 78-32-02-400-010), (Ref. AMM TASK 78-32-04-400-010)

Subtask 54-57-17-410-051-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the lateral access-doors (Ref. AMM TASK 54-51-21-400-001):
(a) for the left pylon: 415AL 415AR
(b) for the right pylon: 425AL 425AR.
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 02:03:44 UTC