(2)
Install the TOOL-ZERO LOCKING, FLAP SLAT CTL LEVER (98D27803500001) on the flap/slat control lever.
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(3)
Put warning notices in the cockpit to tell persons not to operate the flaps or slats.
(4)
Put the warning notices in these positions: - on the panel 40VU, to tell persons not to operate the fuel system - on the panel 800VU, to tell persons not to refuel the aircraft.
(5)
Put the safety barriers in position. Subtask 57-20-00-860-052
B. Aircraft Maintenance Configuration
(1) Defuel the applicable wing tank (Ref. TASK 28-25-00-650-001).
(2)
Drain the remaining fuel (Ref. TASK 28-25-00-650-003). Subtask 57-20-00-010-077
C. Get Access WARNING : OBEY THE SAFETY PROCEDURES WHEN YOU DO WORK IN A FUEL TANK.
_______
(1)
Put the access platform in position below the zone 540(640).
(2)
Remove the applicable access panel (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-27-11-000-001):
-
for the left wing, remove 540AB
-
for the right wing, remove 640AB.
(3)
Put the spark-proof lamp adjacent to the inspection area.
(4)
Remove the sealant from the nuts (1) and the adjacent area, with a non metallic scraper.
4. Procedure
_________ Subtask 57-20-00-110-081
A. Preparation for Inspection
(1) Use a clean MISCELLANEOUS (Material No. 19-003), made moist with CLEANING AGENTS (Material No. 11-026), to clean:
-the upper connection area of the outer wing rear-spar forward-face between RIB1 and RIB2.
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B. Detailed Visual Inspection of the Upper Connection Area of the Outer Wing Rear Spar Forward Face between Ribs 1 and 2
(1) Do an inspection of the rear-spar forward-face upper connection area, with a 10x magnifying glass. Make sure that:
-
there are no cracks
-
there is no corrosion
-
there are no scratches or scores
-
there are no loose or damaged fasteners
-the surface protection is in the correct condition.
NOTE : If necessary, refer to the ASRM (Ref. ASRM 57200000) for the
____
correct repair procedure.
5. Close-up
________
Subtask 57-20-00-410-079
A. Close Access
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)
Apply SEALANTS (Material No. 09-001) to the nuts (1) and the adjacent area.
(2)
Remove the spark-proof lamp.
(3)
Make sure that the work area is clean and clear of tool(s) and other items.
(4)
Install the applicable access panels (Ref. TASK 57-27-11-400-001):
-
for the left wing, install 540AB
-
for the right wing, install 640AB.
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B. Aircraft Maintenance Configuration
(1)
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