Inspection of the Lower Fairing

TASK 54-56-00-200-001-A
Inspection of the Lower Fairing

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: 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.

ZONE: 470
ZONE: 480

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 3M (10 FT)- ADJUSTABLE
No specific	1	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
470	ENGINE 1 AFT PYLON
480	ENGINE 2 AFT PYLON
473AL, 473AR, 483AL, 483AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 54-56-00-000-001-A	Removal of the Lower Fairing
TASK 54-56-00-400-001-A	Installation of the Lower Fairing
Lower Fairing Inspection. ** ON A/C NOT FOR ALL
Lower Fairing Inspection ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 54-56-00-941-051-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 engine 1(2).
(2) Make sure that engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On 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 FADEC 1(2).

Subtask 54-56-00-941-052-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position:
(a) For the left pylon, in zone 470.
(b) For the right pylon, in zone 480.

Subtask 54-56-00-010-051-A ** ON A/C NOT FOR ALL

C. Removal of Component
(1) Remove the lower fairings (Ref. AMM TASK 54-56-00-000-001):
(a) For the left pylon: 473AL 473AR
(b) For the right pylon: 483AL 483AR.

4. Procedure
Subtask 54-56-00-220-050-B ** ON A/C NOT FOR ALL

A. Inspection of the Lower Fairing

Lower Fairing Inspection. ** ON A/C NOT FOR ALL

Lower Fairing Inspection ** ON A/C NOT FOR ALL

(1) Make a detailed inspection of the centering pins.
(2) Make sure that the dimensions of the pins are correct.

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
A	0.3728	0.3748			0.3718
OD 1	(9.4691)	(9.5199)			(9.4437)
			0.0000	0.0021			0.0041
			(0.0000)	(0.0533)			(0.1041)
A	0.3748	0.3749				0.3759
ID 2	(9.5199)	(9.5224)				(9.5478)

5. Close-up
Subtask 54-56-00-410-051-A ** ON A/C NOT FOR ALL

A. Installation of Components
(1) Install the lower fairings (Ref. AMM TASK 54-56-00-400-001):
(a) For the left pylon: 473AL 473AR
(b) For the right pylon 483AL 483AR.

Subtask 54-56-00-942-051-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) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 02:03:31 UTC