Detailed Inspection of Outer Wing, Bottom Skin, Lower Surface at Holes Adjacent to Fuel Pump Apertures between RIB 1 and RIB 2

TASK 57-20-00-220-805-A
Detailed Inspection of Outer Wing, Bottom Skin, Lower Surface at Holes Adjacent to Fuel Pump Apertures between RIB 1 and RIB 2

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: 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: 540
ZONE: 640

1. Reason for the Job
Refer to the MPD TASK: 572054-02
DETAILED INSPECTION OF OUTER WING, BOTTOM SKIN, LOWER SURFACE AT HOLES ADJACENT TO FUEL PUMP APERTURES BETWEEN RIB 1 AND RIB 2

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 3M (10 FT)
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
540	FUEL TANK
640	FUEL TANK

D. Referenced Information

REFERENCE	DESIGNATION
TASK 28-00-00-910-001-A	Fuel Safety Procedures
TASK 51-78-00-916-001-A	Application of Temporary Protection System (TPS)
SRM 572100	(for corrective action)
Outer Wing, Bottom Skin, Lower Surface at Holes Adjacent to Fuel Pump Apertures between RIB 1 and RIB 2

3. Job Set-up
Subtask 57-20-00-941-110-A

A. Safety Precautions

WARNING: OBEY THE FUEL SAFETY PROCEDURES.

(1) Obey the fuel safety procedures (Ref. AMM TASK 28-00-00-910-001).
(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.
(4) Put the SAFETY BARRIER(S) in position.

Subtask 57-20-00-010-114-A

B. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT) in position below zone 540(640).

4. Procedure
Subtask 57-20-00-110-099-A

A. Preparation for Inspection
(1) Make sure that the inspection area is sufficiently clean to do a satisfactory inspection of the area.
(2) If not, clean the inspection area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and Textile-Lint free Cotton - (Material No.14SBA1) .
(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).

Subtask 57-20-00-220-062-A

B. Detailed Inspection of Outer Wing, Bottom Skin, Lower Surface at Holes Adjacent to Fuel Pump Apertures between RIB 1 and RIB 2
(1) Examine the outer wing, bottom skin, lower surface (2) at holes adjacent to the fuel pump openings (1) and make sure that:

There is no corrosion
There is no damage
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 57-20-00-942-111-A

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

[Rev.10 from 2021] 2026.04.02 06:30:38 UTC