Detailed Inspection of Pylon-to-Wing Attach-Fitting Lugs at RIB 4

TASK 54-51-00-200-006-A
Detailed Inspection of Pylon-to-Wing Attach-Fitting Lugs at RIB 4

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: 415
ZONE: 425

1. Reason for the Job
Refer to the MPD TASK: 545114-01
DETAILED INSPECTION OF PYLON TO WING ATTACH FITTING LUGS AT RIB 4

NOTE: The effectivity of this task is "ALL". To know if this task is applicable for your aircraft, refer to the MPD task applicability and the weight variant data given in the SRM introduction.

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	AR	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
415	LOWER PYLON
425	LOWER PYLON
471AL, 481AL
414FR, 423FL, 472AR, 482AR
471AR, 471BL, 471BR, 481AR, 481BL, 481BR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 54-53-11-000-002-A	Removal of the Pylon-to-Wing Access Panels
TASK 54-53-11-000-002-B	Removal of the Pylon-to-Wing Access Panels
TASK 54-53-11-400-002-A	Installation of the Pylon-to-Wing Access Panels
TASK 54-53-11-400-002-B	Installation of the Pylon-to-Wing Access Panels
TASK 78-30-00-040-012-A	Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-081-041-A	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-081-041-B	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-440-012-A	Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
TASK 78-30-00-481-041-A	Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-30-00-481-041-B	Make the Thrust Reverser Unserviceable for Maintenance
SRM 511100	(for corrective action)
SRM 512200	(for corrective action)
Outer and Inner Fittings at RIB4 ** ON A/C NOT FOR ALL
Outer and Inner Fittings at RIB4 ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 54-51-00-941-057-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.

Subtask 54-51-00-010-056-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position:
(a) For the left pylon in zone 410
(b) For the right pylon in zone 420.
(2) Remove the access panels (Ref. AMM TASK 54-53-11-000-002):
(a) For the left pylon: 414FR 471AL 472AR
(b) For the right pylon: 423FL 481AL 482AR.

Subtask 54-51-00-010-056-B ** ON A/C NOT FOR ALL

B. Get Access
(1) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position:
(a) For the left pylon in zone 410
(b) For the right pylon in zone 420.
(2) Remove the access panels (Ref. AMM TASK 54-53-11-000-002):
(a) For the left pylon: 471AL 471AR 471BL 471BR.
(b) For the right pylon: 481AL 481AR 481BL 481BR.

Subtask 54-51-00-040-058-A ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-481-041).

Subtask 54-51-00-040-058-B ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-040-012).

Subtask 54-51-00-110-058-A ** ON A/C NOT FOR ALL

D. Cleaning of the Structure
(1) Clean the inspection area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) , if necessary.

4. Procedure
Subtask 54-51-00-220-058-A ** ON A/C NOT FOR ALL

A. Inspection

Outer and Inner Fittings at RIB4 ** ON A/C NOT FOR ALL

(1) Do a detailed inspection of the internal and external structure of the pylon-to-wing attach-fitting lugs at Rib 4.
(2) Make sure that there is no:
(a) Corrosion damage:
- If you find corrosion damage, refer to the Structural Repair Manual SRM 512200 for types of corrosion, inspection, removal and corrosion protection.
(b) Other damage (scratches, cracks, gouges, dents, creases):
- If you find this type of damage, refer to the Structural Repair Manual SRM 511100 for damage classification and related corrective action.

5. Close-up
Subtask 54-51-00-440-058-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).

Subtask 54-51-00-440-058-B ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-440-012).

Subtask 54-51-00-410-057-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Install the access panels (Ref. AMM TASK 54-53-11-400-002):
(a) For the left pylon: 414FR 471AL 472AR
(b) For the right pylon: 423FL 481AL 482AR.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).

Subtask 54-51-00-410-057-B ** ON A/C NOT FOR ALL

B. Close Access
(1) Install the access panels (Ref. AMM TASK 54-53-11-400-002):
(a) For the left pylon: 471AL 471AR 471BL, 471BR
(b) For the right pylon: 481AL 481AR 481BL, 481BR.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 01:59:30 UTC