Inspection of Inboard Flap, Bottom Surface, Drain Holes and Inspection Holes

TASK 57-52-00-200-011-A
Inspection of Inboard Flap, Bottom Surface, Drain Holes and Inspection Holes

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

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.

ZONE: 581
ZONE: 681

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	AR	PROBE DIA LESS THAN 5 MM(0.197IN)NON METALLIC FLEXIBLE
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.05RAB9)	Adhesive Film Tape-- Aluminium Foil -
(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
Inboard Flap, Bottom Surface, Drain Holes and Inspection Holes ** ON A/C NOT FOR ALL
Inboard Flap, Bottom Surface, Drain Holes and Inspection Holes ** ON A/C NOT FOR ALL
Inboard Flap, Bottom Surface, Drain Holes and Inspection Holes ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 57-52-00-941-085-A

A. Safety Precautions
(1) Put the 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 57-52-00-860-109-A

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.

Subtask 57-52-00-865-115-A

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
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B02
** ON A/C ALL
121VU	FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2	8CV	Q21

Subtask 57-52-00-010-088-A

D. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the applicable inboard flap.

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 57-52-00-210-068-A ** ON A/C NOT FOR ALL

A. Inspection of Inboard Flap, Bottom Surface, Drain Holes and Inspection Holes
(1) Examine the inboard flap, bottom surface drain holes. Make sure that:

there are no covers installed on the drain holes
the drain holes are not blocked.

(2) If a drain hole is blocked, remove all unwanted material from around the hole. Use a PROBE DIA LESS THAN 5 MM(0.197IN)NON METALLIC FLEXIBLE to remove the blockage from the hole.
(3) Examine the inboard flap, bottom surface inspection holes. Make sure that:

the covers are correctly installed on each inspection hole
the covers are in good condition.

(4) If the covers are missing or not in good condition, replace them at the subsequent maintenance check.

Subtask 57-52-00-960-050-A ** ON A/C NOT FOR ALL

B. Replace Defective or Missing Inspection Hole Covers
(1) Remove and discard the damaged inspection hole cover(s).
(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 surfaces around the applicable inboard flap, bottom surface inspection hole(s).

(3) Use Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) cut to the correct dimensions, to make new cover(s) for the applicable inspection hole(s).
(4) Install the new cover(s) on the applicable inspection hole(s).

Subtask 57-52-00-210-068-B ** ON A/C NOT FOR ALL

C. Inspection of Inboard Flap, Bottom Surface, Drain Holes and Inspection Holes
(1) Examine the inboard flap, bottom surface drain holes. Make sure that:

there are no rubber grommets installed in the drain holes
the drain holes are not blocked.

the rubber grommets are correctly installed in each inspection hole
the rubber grommets are in good condition.

(4) If the rubber grommets are missing or not in good condition, replace them at the subsequent maintenance check.

Subtask 57-52-00-960-050-B ** ON A/C NOT FOR ALL

D. Replace Defective or Missing Inspection Hole Rubber Grommets
(1) Remove and discard the damaged inspection hole rubber grommet(s).
(2) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) , made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) to clean:

the internal surfaces of the applicable inboard flap, bottom surface inspection hole(s).

(3) Install the new rubber grommet(s) in the applicable inspection hole(s).

5. Close-up
Subtask 57-52-00-865-116-A

A. 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
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B02
** ON A/C ALL
121VU	FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2	8CV	Q21

Subtask 57-52-00-860-110-A

B. Aircraft Maintenance Configuration
(1) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the flap/slat control lever.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Retract the flaps fully (Ref. AMM TASK 27-50-00-866-009).

Subtask 57-52-00-942-083-A

C. 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 06:31:18 UTC