A. Sealant Application
(1) Apply sealant on the inspection area (Ref. TASK 51-76-12-300-001) and (Ref. SRM 517612,P.Block-001).
Subtask 57-10-00-410-061
B. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Install the access covers 147AZ, 148AZ (Ref. TASK 57-17-11-400-001).
(3)
Remove the access platform.
R (4) Close the Main Landing Gear doors 834 (844) (Ref. TASK 32-12-00-410-001).
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57-10-00Page 620
1 1 May 01/05 1 1 1CES 1 TASK 57-10-00-200-012
Detailed Inspection of Center Wing Box, Rear Spar Aft Face
1. Reason for the Job
__________________
Refer to the MPD TASK: 571122-01
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific flashlight
No specific access platform 1.8 m (5 ft. 11 in.)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
No specific masking paper Material No. 08-074 MASKING TAPE (Ref. 20-31-00)
Material No. 11-004 USA MIL-T-81533 1.1.1TRICHLOROETHANE (METHYL CHLOROFORM) (Ref. 20-31-00)
Material No. 15-005 AIB TN 10138 TYPE I GRADE 2 CORROSION PREVENTIVE TEMPORARY PROTECTIVE COMPOUND (Ref. 20-31-00)
Material No. 15-006 AIB TN 10138 TYPE I GRADE 3 CORROSION PREVENTIVE TEMPORARY PROTECTIVE COMPOUND (Ref. 20-31-00)
Material No. 15-007 AIB TN 10138 TYPE II GRADE 1 CORROSION PREVENTIVE TEMPORARY PROTECTIVE COMPOUND (Ref. 20-31-00)
Material No. 15-008 AIB TN 10138 TYPE II GRADE 2 CORROSION PREVENTIVE TEMPORARY PROTECTIVE COMPOUND (Ref. 20-31-00)
Material No. 19-003 USA AMS 3819 LINT-FREE COTTON CLOTH (Ref. 20-31-00)
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C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
32-12-00-010-001 Open the Main Gear Doors for Access 32-12-00-410-001 Close the Main Gear Doors after Access SRM 511100-P.Block001 SRM 512200-P.Block001 57-10-00-991-010 Fig. 605
3. Job Set-up
__________
Subtask 57-10-00-010-071
A. Get Access
(1)
Open the main landing-gear doors (Ref. TASK 32-12-00-010-001).
(2)
Put an access platform in position at the zone 147.
(3)
Use a flashlight for the inspection.
Subtask 57-10-00-110-050
B. Cleaning of the Structure
WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL
_______ MATERIALS ONLY WITH A GOOD SUPPLY OF AIR. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
(1) Clean the inspection area with CLEANING AGENTS (Material No. 11-004) and a lint-free cotton cloth MISCELLANEOUS (Material No. 19-003), if necessary.
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4. Procedure
_________
Subtask 57-10-00-220-053
A. Inspection
(Ref. Fig. 605/TASK 57-10-00-991-010)
(1)
Do a detailed inspection of the aft face of the rear spar 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 (Ref. SRM 512200-P.Block001) for types of corrosion, inspection, removal and corrosion protection.
(b)
Other damage (cracks, scratches, stress, marks, dents, bumps,..) :
-If you find this type of damage, refer to the Structural Repair Manual (Ref. SRM 511100-P.Block001) for damage classification and corrective action.
Subtask 57-10-00-916-050
B. Application of Temporary Protection
(Ref. Fig. 605/TASK 57-10-00-991-010)
CAUTION : DO NOT APPLY TEMPORARY PROTECTION ON THE OXYGEN SYSTEMS.
_______ MAKE SURE THAT THE TEMPORARY PROTECTION DOES NOT GET: -ON COMPOSITE PARTS, CONTROL CABLES, PULLEYS,TEFLON BEARINGS. -ON LUBRICATED SURFACES. -IN DRAIN VALVES OR OTHER ORIFICES. TEMPORARY PROTECTION ON OR IN THESE PARTS CAN CAUSE DAMAGE.
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