Special Detailed Inspection (US) of Centre Wing Box and Outer Wing Box, Lower Splice and Panel between Stiffener 6 and FR 42, LH/RH
TASK 57-10-00-270-807-A
Special Detailed Inspection (US) of Centre Wing Box and Outer Wing Box, Lower Splice and Panel between Stiffener 6 and FR 42, LH/RH
Refer to the ALI TASK: 571204-01
SPECIAL DETAILED INSPECTION (US) OF CENTRE WING BOX AND OUTER WING BOX, LOWER SPLICE AND PANEL BETWEEN STIFFENER 6 AND FR 42, LH/RH.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 57-10-00-941-077-A ** ON A/C NOT FOR ALL Subtask 57-10-00-010-105-A ** ON A/C NOT FOR ALL
Subtask 57-10-00-270-063-A ** ON A/C NOT FOR ALL
Subtask 57-10-00-410-106-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:30:32 UTC
Special Detailed Inspection (US) of Centre Wing Box and Outer Wing Box, Lower Splice and Panel between Stiffener 6 and FR 42, LH/RH
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:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobRefer to the ALI TASK: 571204-01
SPECIAL DETAILED INSPECTION (US) OF CENTRE WING BOX AND OUTER WING BOX, LOWER SPLICE AND PANEL BETWEEN STIFFENER 6 AND FR 42, LH/RH.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 2M (6 FT) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 191 | AIR CONDITIONING COMPT AND FAIRINGS |
| 192 | AIR CONDITIONING COMPT AND FAIRINGS |
| 195 | HYDRAULIC COMPT AND FAIRINGS |
| 196 | HYDRAULIC COMPT AND FAIRINGS |
| 147CB, 148DB, 191LB, 192LB, 734, 744 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 28-00-00-910-001-A | Fuel Safety Procedures |
| 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 53-35-11-000-001-A | Removal of the Wing-to-Fuselage Fairings |
| TASK 53-35-11-400-001-A | Installation of the Wing-to-Fuselage Fairings |
| SRM 512300 | |
| SRM 512400 | |
| NTM 571204 | |
| SRM 511100 | (for corrective action) |
| SRM 512200 | (for corrective action) |
Center and Outer Wing Boxes, Lower Splice and Panel between Stringer 6 and FR42 ** ON A/C NOT FOR ALL | |
Center and Outer Wing Boxes, Lower Splice and Panel between Stringer 6 and FR42 ** ON A/C NOT FOR ALL | |
Subtask 57-10-00-941-077-A ** ON A/C NOT FOR ALL Subtask 57-10-00-010-105-A ** ON A/C NOT FOR ALL
B. Get Access
(1) Open MLG door 734 ( 744) (Ref. AMM TASK 32-12-00-010-001).
(2) Put the ACCESS PLATFORM 2M (6 FT) in position at zone 191 (192).
(3) Remove wing-to-fuselage fairings 147CB, 148DB, 191LB and 192LB (Ref. AMM TASK 53-35-11-000-001).
Subtask 57-10-00-110-093-A ** ON A/C NOT FOR ALL (1) Open MLG door 734 ( 744) (Ref. AMM TASK 32-12-00-010-001).
(2) Put the ACCESS PLATFORM 2M (6 FT) in position at zone 191 (192).
(3) Remove wing-to-fuselage fairings 147CB, 148DB, 191LB and 192LB (Ref. AMM TASK 53-35-11-000-001).
C. 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 not, clean the inspection area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and the Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Remove the sealant and/or paint from the inspection area if this is necessary for the Nondestructive Testing Manual (NTM) task.
4. Procedure(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 the Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Remove the sealant and/or paint from the inspection area if this is necessary for the Nondestructive Testing Manual (NTM) task.
Subtask 57-10-00-270-063-A ** ON A/C NOT FOR ALL
A. Inspection
(1) Do a special detailed inspection of the left and right sides of the center and outer wing boxes (and of the lower splice and panel) for damage or discontinuities. This inspection includes the area between stiffener 6 and FR42. Refer to NTM 571204.
(2) Make a report of the damage after the NTM inspection:
(a) Corrosion damage:
If you find corrosion, refer to the Structural Repair Manual (Ref. 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 (Ref. SRM 511100) for the damage types, classification and corrective action.
Subtask 57-10-00-390-062-A ** ON A/C NOT FOR ALL (1) Do a special detailed inspection of the left and right sides of the center and outer wing boxes (and of the lower splice and panel) for damage or discontinuities. This inspection includes the area between stiffener 6 and FR42. Refer to NTM 571204.
(2) Make a report of the damage after the NTM inspection:
(a) Corrosion damage:
If you find corrosion, refer to the Structural Repair Manual (Ref. 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 (Ref. SRM 511100) for the damage types, classification and corrective action.
B. Sealant or Paint Application
(1) If the NTM procedure told to remove the sealant and/or paint from the inspection area, apply sealant (refer to SRM 512400) or paint (refer to SRM 512300) on the inspection area.
5. Close-up(1) If the NTM procedure told to remove the sealant and/or paint from the inspection area, apply sealant (refer to SRM 512400) or paint (refer to SRM 512300) on the inspection area.
Subtask 57-10-00-410-106-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 wing-to-fuselage fairings 147CB, 148DB, 191LB and 192LB (Ref. AMM TASK 53-35-11-400-001).
(3) Remove the access platform(s).
(4) Close MLG door 734 ( 744) (Ref. AMM TASK 32-12-00-410-001).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install wing-to-fuselage fairings 147CB, 148DB, 191LB and 192LB (Ref. AMM TASK 53-35-11-400-001).
(3) Remove the access platform(s).
(4) Close MLG door 734 ( 744) (Ref. AMM TASK 32-12-00-410-001).
Center and Outer Wing Boxes, Lower Splice and Panel between Stringer 6 and FR42