Detailed Inspection of Center Wing Box, Stringer Web at Junction with Strut Attach Fittings on Upper Stringers 2, 3, 8, 9, 15, 16

TASK 57-10-00-200-017-A
Detailed Inspection of Center Wing Box, Stringer Web at Junction with Strut Attach Fittings on Upper Stringers 2, 3, 8, 9, 15, 16

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: 141
ZONE: 142

1. Reason for the Job
Refer to the MPD TASK: 571189-01
DETAILED INSPECTION OF CENTER WING BOX, STRINGER WEB AT JUNCTION WITH STRUT ATTACH FITTINGS ON UPPER STRINGERS 2, 3, 8, 9, 15, 16

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)- ADJUSTABLE
No specific	1	FLASHLIGHT

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
141	WING CENTER BOX
142	WING CENTER BOX
148AZ, 734, 744
147AZ

D. Referenced Information

REFERENCE	DESIGNATION
TASK 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access
TASK 57-17-11-000-001-A	Removal of Access Cover 147AZ(148AZ)
TASK 57-17-11-000-001-B	Removal of Access Cover 148AZ or/and the ACT-Equipment Support Door
TASK 57-17-11-400-001-A	Installation of Access Cover 147AZ(148AZ)
TASK 57-17-11-400-001-B	Installation of Access Cover 148AZ or/and the ACT-Equipment Support-Door
SRM 511100
SRM 512200
Stringer Web at the junction with the Strut Attach Fitting on the upper STIFS 2, 3, 8, 9, 15, 16 of the Center Wing Box

3. Job Set-up
Subtask 57-10-00-010-065-A ** ON A/C NOT FOR ALL

A. Get Access
(1) Open the main landing-gear doors 734 ( 744) (Ref. AMM TASK 32-12-00-010-001).
(2) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the zones 147 and 148.
(3) Remove the access covers 147AZ and 148AZ (Ref. AMM TASK 57-17-11-000-001).
(4) Use a FLASHLIGHT, if necessary.

Subtask 57-10-00-010-065-B ** ON A/C NOT FOR ALL

A. Get Access
(1) Open the main landing-gear doors 734 ( 744) (Ref. AMM TASK 32-12-00-010-001).
(2) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the zone 148.
(3) Remove the access cover 148AZ (Ref. AMM TASK 57-17-11-000-001).
(4) Use a FLASHLIGHT, if necessary.

Subtask 57-10-00-110-056-A

B. 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 57-10-00-220-058-A

A. Inspection

Stringer Web at the junction with the Strut Attach Fitting on the upper STIFS 2, 3, 8, 9, 15, 16 of the Center Wing Box

(1) Do a detailed inspection of the stringer web at the junction with the strut attach fittings. This inspection is applicable at STIFS 2, 3, 8, 9, 15 and 16 of the center wing box.
(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 corrective action.

5. Close-up
Subtask 57-10-00-410-064-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) Install the access covers 147AZ and 148AZ (Ref. AMM TASK 57-17-11-400-001).
(3) Remove the access platform(s).
(4) Close the main landing-gear doors 734 ( 744) (Ref. AMM TASK 32-12-00-410-001).

Subtask 57-10-00-410-064-B ** 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) Install the access cover 148AZ (Ref. AMM TASK 57-17-11-400-001).
(3) Remove the access platform(s).
(4) Close the main landing-gear doors 734 ( 744) (Ref. AMM TASK 32-12-00-410-001).

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