Detailed Inspection of Inboard Flap, Trunnion Attachment Bracket, including Inboard Trunnion, LH/RH

TASK 57-52-00-200-007-A
Detailed Inspection of Inboard Flap, Trunnion Attachment Bracket, including Inboard Trunnion, LH/RH

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

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.

CAUTION: BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:

DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.

CAUTION: DO NOT APPLY TEMPORARY PROTECTION SYSTEM (TPS) ON THE INSPECTION AREA. IF YOU APPLY TPS ON THE INSPECTION AREA, YOU CAN CAUSE DAMAGE TO THE AIRCRAFT.

ZONE: 581
ZONE: 681

1. Reason for the Job
Refer to the MPD TASK: 575203-01
DETAILED INSPECTION OF INBOARD FLAP, TRUNNION ATTACHMENT BRACKET INCLUDING INBOARD TRUNNION, LH/RH

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)
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)
98D27803000000	1	LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION

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
581	FLAP N° 1
681	FLAP N° 1

D. Referenced Information

REFERENCE	DESIGNATION
TASK 27-50-00-866-008-A	Extension of the Flaps on the Ground
TASK 27-50-00-866-008-A-01	Extension of the Flaps/Slats on the Ground
TASK 27-50-00-866-009-A	Retraction of the Flaps on the Ground
TASK 27-50-00-866-009-A-01	Retraction of the Flaps/Slats on the Ground
TASK 27-54-61-000-005-A	Removal of the Inboard Flap Seals
TASK 27-54-61-400-007-A	Installation of the Inboard Flap Seals
TASK 51-78-00-916-001-A	Application of Temporary Protection System (TPS)
SRM 575200	(for corrective action)
Inboard Flap - Trunnion Attachment-Bracket ** ON A/C NOT FOR ALL
Inboard Flap - Trunnion Attachment-Bracket ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 57-52-00-941-062-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Put WARNING NOTICE(S) in the cockpit to tell persons not to operate the flaps or slats.
(2) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.

Subtask 57-52-00-860-089-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

(1) Fully extend the flaps (Ref. AMM TASK 27-50-00-866-008).
(2) Make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is installed on the flap/slat control lever.
(3) Put the ACCESS PLATFORM 3M (10 FT) below the applicable wing trailing edge at the inboard trunnion of the inboard flap, zone 581(681).

Subtask 57-52-00-865-072-A ** ON A/C NOT FOR ALL

C. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B07
121VU	FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2	8CV	Q21

Subtask 57-52-00-010-082-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Remove the inboard flap seals (Ref. AMM TASK 27-54-61-000-005).

Subtask 57-52-00-110-062-A ** ON A/C NOT FOR ALL

E. Preparation for Inspection
(1) Make sure that the inspection area is sufficiently clean to do the inspection of the area.
(2) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) , made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) to clean the external surface of the trunnion attachment bracket.
(3) Make sure that there is no TPS layer and if there is a TPS layer, remove it (Ref. AMM TASK 51-78-00-916-001).

4. Procedure

CAUTION: BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:

DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.

Subtask 57-52-00-210-055-A ** ON A/C NOT FOR ALL

A. Detailed Inspection of Inboard Flap, Trunnion Attachment Bracket, including Inboard Trunnion, LH/RH
(1) Examine the external surface of the trunnion attachment bracket and the inboard trunnion, where it can be seen. Make sure that:

there is no corrosion or damage
there are no cracks
the protective treatment is in the correct condition.

NOTE: If necessary, refer to the ASRM SRM 575200 for the correct repair procedure.

5. Close-up
Subtask 57-52-00-410-086-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Install the inboard flap seals (Ref. AMM TASK 27-54-61-400-007).

Subtask 57-52-00-865-073-A ** ON A/C NOT FOR ALL

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B07
121VU	FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2	8CV	Q21

Subtask 57-52-00-860-090-A ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the flap/slat control lever.
(2) Fully retract the flaps (Ref. AMM TASK 27-50-00-866-009).

Subtask 57-52-00-942-061-A ** ON A/C NOT FOR ALL

D. Removal of Equipment
(1) Remove the access platform(s).
(2) Remove the WARNING NOTICE(S).
(3) Remove the safety barriers.
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.02 06:31:17 UTC