Subtask 57-10-00-020-050
 B. Removal of the Components
 (1)
 Remove the air conditioning pack (Ref. TASK 21-52-41-000-001).

 (2)
 Remove the vapor seal and the heat shields.

 (3)
 Use a FLASHLIGHT for the inspection.

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 Subtask 57-10-00-110-055
 C. 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.
 WARNING : OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE THIS/THESE
_______ MATERIAL/S. USE PROTECTIVE CLOTHING, RUBBER GLOVES, GOGGLES AND A MASK.
 (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.
 4. Procedure
_________
 Subtask 57-10-00-220-057
 A. Inspection
 (Ref. Fig. 609/TASK 57-10-00-991-015)

 (1)
 Do a detailed inspection of the structure on the lower face of the center wing box. This inspection is applicable from FR36 to FR42, between RIB1 left side and RIB1 right side below the vapor seal.

 (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, 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.
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 Lower Surface Skin on the Center Wing Box from FR36 to FR42, between RIB1 left
 side and RIB1 right side
 Figure 609/TASK 57-10-00-991-015

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 5. Close-up
________ Subtask 57-10-00-420-050
 A. Installation of the Components
 (1) Install the heat shields and the vapor seal.
 (2) Install the air conditioning pack (Ref. TASK 21-52-41-400-001). Subtask 57-10-00-410-072
 B. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Install the wing-to-fuselage fairings: 191CT, 192CT, 191LB and 192LB (Ref. TASK 53-35-11-400-001).

 (3)
 Install the quick-release access panels: 191BB, 191EB, 191KB, 192EB, 192FB, 192KB, 195AB and 196AB (Ref. TASK 53-35-13-400-002).

 (4)
 Remove the access platform(s).

 (5)
 Close the Main Landing-Gear doors (Ref. TASK 32-12-00-410-001).

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 TASK 57-10-00-200-017

 Detailed Inspection of Center Wing Box, Stringer Web at Junction with Strut Attach Fittings on Upper Stringers 2, 3, 8, 9, 15, 16
 1. Reason for the Job
__________________
 Refer to the MPD TASK: 571189-01
 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. 11-004  USA MIL-T-81533 1.1.1TRICHLOROETHANE (METHYL CHLOROFORM) (Ref. 20-31-00)
 Material No. 19-003  USA AMS 3819 LINT-FREE COTTON CLOTH (Ref. 20-31-00)
 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 57-17-11-000-001 Removal of the Covers 147AZ (148AZ) 57-17-11-400-001 Installation of the Covers 147AZ (148AZ) SRM 511100-P.Block001 SRM 512200-P.Block001 57-10-00-991-016 Fig. 610
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