General Visual Inspection of Outer Wing, Bottom-Skin Lower Surface at Fuel-Tank Water Drain-Holes Between RIB 15-16 and RIB 22-23

TASK 57-21-00-210-802-A
General Visual Inspection of Outer Wing, Bottom-Skin Lower Surface at Fuel-Tank Water Drain-Holes Between RIB 15-16 and RIB 22-23

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: 500
ZONE: 600

1. Reason for the Job
Refer to the MPD TASK: 572164-02
GENERAL VISUAL INSPECTION OF OUTER WING, BOTTOM SKIN LOWER SURFACE AT FUEL TANK WATER DRAIN HOLES BETWEEN RIB 15-16 AND RIB 22-23

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	1	ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE
No specific	AR	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)
98D27803500001	1	LOCKING TOOL ZERO POS

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
500	LEFT WING
600	RIGHT WING

D. Referenced Information

REFERENCE	DESIGNATION
SRM 572100	(for corrective action)
Outer Wing, Bottom Skin Lower Surface at Fuel Tank Water Drain Holes between RIB 15-16 and RIB 22-23

3. Job Set-up
Subtask 57-21-00-941-099-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
(2) Install the 98D27803500001 LOCKING TOOL ZERO POS on the flap/slat control lever.
(3) Put a WARNING NOTICE(S) in the cockpit to tell persons not to operate the flaps or slats.

Subtask 57-21-00-010-091-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position at the zone 500(600).

4. Procedure
Subtask 57-21-00-110-087-A ** ON A/C NOT FOR ALL

A. Preparation for Inspection
(1) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) , made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) , to clean the applicable inspection area.

Subtask 57-21-00-210-092-A ** ON A/C NOT FOR ALL

B. General Visual Inspection of Outer Wing, Bottom-Skin Lower Surface at Fuel-Tank Water Drain-Holes between RIB 15-16 and RIB 22-23
(1) Do an inspection and make sure that:

There is no damage
There are no cracks
There is no corrosion
The paint finish is in the correct condition.

NOTE: If necessary, refer to the SRM 572100 for the correct repair procedure.

5. Close-up
Subtask 57-21-00-410-083-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).

Subtask 57-21-00-942-094-A ** ON A/C NOT FOR ALL

B. Removal of Equipment
(1) Remove the safety barriers.
(2) Remove the 98D27803500001 LOCKING TOOL ZERO POS from the flap/slat control lever.
(3) Remove the WARNING NOTICE(S).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 02:10:42 UTC