Detailed Inspection of Outer Wing, Top Skin Stringers, Between Rib 1 and Rib 8, including Runouts and Air Transfer Holes, Stringer Joints, and Butt Strap, at Stringer 11, excluding the Area Inside the Dry Bay
TASK 57-20-00-200-010-A
Detailed Inspection of Outer Wing, Top Skin Stringers, Between Rib 1 and Rib 8, including Runouts and Air Transfer Holes, Stringer Joints, and Butt Strap, at Stringer 11, excluding the Area Inside the Dry Bay
Refer to the MPD TASK: 572020-01
DETAILED INSPECTION OF OUTER WING, TOP SKIN STRINGERS, BETWEEN RIB 1 AND RIB 8, INCLUDING RUNOUTS AND AIR TRANSFER HOLES, STRINGER JOINTS, AND BUTT STRAP, AT STRINGER 11, EXCLUDING THE AREA INSIDE THE DRY BAY
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 57-20-00-941-059-A ** ON A/C NOT FOR ALL
Subtask 57-20-00-210-058-A ** ON A/C NOT FOR ALL
Subtask 57-20-00-410-060-C ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:30:35 UTC
Detailed Inspection of Outer Wing, Top Skin Stringers, Between Rib 1 and Rib 8, including Runouts and Air Transfer Holes, Stringer Joints, and Butt Strap, at Stringer 11, excluding the Area Inside the Dry Bay
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.
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:
BEFORE YOU DO WORK IN OR NEAR A FUEL TANK, MAKE SURE THAT YOU OBEY ALL THE SAFETY PROCEDURES. THIS WILL PREVENT INJURY TO PERSONS AND/OR DAMAGE TO THE AIRCRAFT.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
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.
1. Reason for the JobRefer to the MPD TASK: 572020-01
DETAILED INSPECTION OF OUTER WING, TOP SKIN STRINGERS, BETWEEN RIB 1 AND RIB 8, INCLUDING RUNOUTS AND AIR TRANSFER HOLES, STRINGER JOINTS, AND BUTT STRAP, AT STRINGER 11, EXCLUDING THE AREA INSIDE THE DRY BAY
NOTE: The effectivity of this task is "ALL". To know if this task is applicable to your aircraft, refer to the MPD task applicability.
2. Job Set-up InformationA. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE |
| No specific | 1 | LIGHT SOURCE - SPARK-PROOF |
| No specific | 1 | MIRROR - INSPECTION |
| No specific | AR | SAFETY BARRIER(S) |
| No specific | AR | WARNING NOTICE(S) |
| 98D27803500001 | 1 | LOCKING TOOL ZERO POS |
| 98D57004013000 | 2 | HOOK-COVER (RIB 2 SURGE DOORS) |
| 98D57004014000 | 2 | HOOK-COVER (RIB2-SURGE DOORS) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 540 | FUEL TANK |
| 640 | FUEL TANK |
| 540AB, 540AZ, 540BB, 540BZ, 640AB, 640AZ, 640BB, 640BZ |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 28-10-00-910-001-A | Safety Procedures When You Do Work in a Fuel Tank |
| TASK 51-78-00-916-001-A | Application of Temporary Protection System (TPS) |
| TASK 57-27-11-000-001-A | Removal of the Access Panel |
| TASK 57-27-11-400-001-A | Installation of the Access Panel |
| TASK 57-27-12-000-002-A | Removal of the Rib 2 Access Panel 540AZ(640AZ) or 540BZ(640BZ) |
| TASK 57-27-12-400-002-A | Installation of the Rib 2 Access Panel 540AZ (640AZ) or 540BZ (640BZ) |
| SRM 511100 | |
| SRM 512200 | |
Subtask 57-20-00-941-059-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Obey the safety procedures when you do work in the fuel tank (Ref. AMM TASK 28-10-00-910-001).
(2) Install the 98D27803500001 LOCKING TOOL ZERO POS on the slats and flaps control lever.
(3) Put the WARNING NOTICE(S) in position in the cockpit to tell persons not to operate the slats and flaps control lever.
(4) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
Subtask 57-20-00-860-063-A (1) Obey the safety procedures when you do work in the fuel tank (Ref. AMM TASK 28-10-00-910-001).
(2) Install the 98D27803500001 LOCKING TOOL ZERO POS on the slats and flaps control lever.
(3) Put the WARNING NOTICE(S) in position in the cockpit to tell persons not to operate the slats and flaps control lever.
(4) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
DELETED
Subtask 57-20-00-010-059-C ** ON A/C NOT FOR ALL C. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the wing fuel tank, at zone 540(640).
(2) Remove the applicable access panels (Ref. AMM TASK 57-27-11-000-001):
(3) Open the applicable rib 2 surge doors:
(4) Install the 98D57004013000 HOOK-COVER (RIB 2 SURGE DOORS) on the forward surge doors.
(5) Install the 98D57004014000 HOOK-COVER (RIB2-SURGE DOORS) on the aft surge doors.
Subtask 57-20-00-010-059-D ** ON A/C NOT FOR ALL (1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the wing fuel tank, at zone 540(640).
(2) Remove the applicable access panels (Ref. AMM TASK 57-27-11-000-001):
(3) Open the applicable rib 2 surge doors:
(4) Install the 98D57004013000 HOOK-COVER (RIB 2 SURGE DOORS) on the forward surge doors.
(5) Install the 98D57004014000 HOOK-COVER (RIB2-SURGE DOORS) on the aft surge doors.
C. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the wing fuel tank, at zone 540(640).
(2) Remove the applicable access panels (Ref. AMM TASK 57-27-11-000-001):
(3) Open the applicable rib 2 surge doors:
(4) Install the 98D57004013000 HOOK-COVER (RIB 2 SURGE DOORS) on the forward surge doors.
(5) Install the 98D57004014000 HOOK-COVER (RIB2-SURGE DOORS) on the aft surge doors.
Subtask 57-20-00-010-059-E ** ON A/C NOT FOR ALL (1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the wing fuel tank, at zone 540(640).
(2) Remove the applicable access panels (Ref. AMM TASK 57-27-11-000-001):
(3) Open the applicable rib 2 surge doors:
(4) Install the 98D57004013000 HOOK-COVER (RIB 2 SURGE DOORS) on the forward surge doors.
(5) Install the 98D57004014000 HOOK-COVER (RIB2-SURGE DOORS) on the aft surge doors.
C. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the wing fuel tank, at zone 540(640).
(2) Remove the applicable access panels (Ref. AMM TASK 57-27-11-000-001):
(3) Remove the applicable rib 2 access panels (Ref. AMM TASK 57-27-12-000-002):
Subtask 57-20-00-110-060-A ** ON A/C NOT FOR ALL (1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the wing fuel tank, at zone 540(640).
(2) Remove the applicable access panels (Ref. AMM TASK 57-27-11-000-001):
(3) Remove the applicable rib 2 access panels (Ref. AMM TASK 57-27-12-000-002):
D. Preparation of the Inspection Area
(1) Make sure that the inspection area is sufficiently clean to do a satisfactory inspection of the area.
(2) If the inspection area is not sufficiently clean, clean it with Non Aqueous Cleaner-General - - (Material No.08BAA9) and the Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Make sure that there is no TPS layer.
(4) If there is a TPS layer, remove it (Ref. AMM TASK 51-78-00-916-001).
4. Procedure(1) Make sure that the inspection area is sufficiently clean to do a satisfactory inspection of the area.
(2) If the inspection area is not sufficiently clean, clean it with Non Aqueous Cleaner-General - - (Material No.08BAA9) and the Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Make sure that there is no TPS layer.
(4) If there is a TPS layer, remove it (Ref. AMM TASK 51-78-00-916-001).
Subtask 57-20-00-210-058-A ** ON A/C NOT FOR ALL
A. Inspection
(1) Examine the applicable inspection area with the LIGHT SOURCE - SPARK-PROOF and the MIRROR - INSPECTION.
(2) Do a detailed inspection for damage or discontinuities. Do this at:
(a) Corrosion:
If you find corrosion, refer to the Structural Repair Manual SRM 512200 for the corrosion types, inspection, removal and subsequent 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 the damage types, classification and corrective action.
5. Close-up(1) Examine the applicable inspection area with the LIGHT SOURCE - SPARK-PROOF and the MIRROR - INSPECTION.
(2) Do a detailed inspection for damage or discontinuities. Do this at:
- The outer wing
- The top skin stringers, between rib 1 and rib 8 (include the runouts and the air transfer holes)
- The stringer joints
- The buttstrap, at stringer 11 (does not include the inner area of the dry bay).
(a) Corrosion:
If you find corrosion, refer to the Structural Repair Manual SRM 512200 for the corrosion types, inspection, removal and subsequent 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 the damage types, classification and corrective action.
Subtask 57-20-00-410-060-C ** 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 98D57004013000 HOOK-COVER (RIB 2 SURGE DOORS) from the forward surge doors.
(3) Remove the 98D57004014000 HOOK-COVER (RIB2-SURGE DOORS) from the aft surge doors.
(4) Close the applicable rib 2 surge doors:
(5) Install the applicable access panels (Ref. AMM TASK 57-27-11-400-001):
Subtask 57-20-00-410-060-D ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the 98D57004013000 HOOK-COVER (RIB 2 SURGE DOORS) from the forward surge doors.
(3) Remove the 98D57004014000 HOOK-COVER (RIB2-SURGE DOORS) from the aft surge doors.
(4) Close the applicable rib 2 surge doors:
(5) Install the applicable access panels (Ref. AMM TASK 57-27-11-400-001):
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the 98D57004013000 HOOK-COVER (RIB 2 SURGE DOORS) from the forward surge doors.
(3) Remove the 98D57004014000 HOOK-COVER (RIB2-SURGE DOORS) from the aft surge doors.
(4) Close the applicable rib 2 surge doors:
(5) Install the applicable access panels (Ref. AMM TASK 57-27-11-400-001):
Subtask 57-20-00-410-060-E ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the 98D57004013000 HOOK-COVER (RIB 2 SURGE DOORS) from the forward surge doors.
(3) Remove the 98D57004014000 HOOK-COVER (RIB2-SURGE DOORS) from the aft surge doors.
(4) Close the applicable rib 2 surge doors:
(5) Install the applicable access panels (Ref. AMM TASK 57-27-11-400-001):
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the applicable rib 2 access panels (Ref. AMM TASK 57-27-12-400-002):
(3) Install the applicable access panels (Ref. AMM TASK 57-27-11-400-001):
Subtask 57-20-00-860-064-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the applicable rib 2 access panels (Ref. AMM TASK 57-27-12-400-002):
(3) Install the applicable access panels (Ref. AMM TASK 57-27-11-400-001):
DELETED
Subtask 57-20-00-942-060-A ** ON A/C NOT FOR ALL C. Removal of Equipment
(1) Remove the SAFETY BARRIERS.
(2) Remove the access platform(s).
(3) Remove the 98D27803500001 LOCKING TOOL ZERO POS from the slats and flaps 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.
(1) Remove the SAFETY BARRIERS.
(2) Remove the access platform(s).
(3) Remove the 98D27803500001 LOCKING TOOL ZERO POS from the slats and flaps 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.
Details of the Top Skin Stringers - Rib 1 thru Rib 8