WARNING : OBEY THE SAFETY PROCEDURES WHEN YOU DO WORK IN A FUEL TANK.
_______
(1)
You must obey the fuel safety procedures (Ref. TASK 28-10-00-910-001) when you do work in a fuel tank.
(2)
Install the TOOL-ZERO LOCKING, FLAP SLAT CTL LEVER (98D27803500001) on the flap/slat control lever.
(3)
Put warning notices in the cockpit to tell persons not to operate the flaps or slats.
(4)
Put the safety barriers in position.
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Subtask 57-21-00-650-074
B. Fuel Configuration
(1)
Defuel the applicable fuel tank (Ref. TASK 28-25-00-650-001).
(2)
Drain the remaining fuel from the applicable fuel tank (Ref. TASK 28-25-00-650-003).
Subtask 57-21-00-010-064
C. Get Access
(1)
Put the adjustable access platform below the applicable wing fuel tank, zone 540(640).
(2)
Remove the applicable access panels (Ref. TASK 57-27-11-000-001) and (Ref. TASK 28-10-00-910-002):
-
for the left wing, remove 540CB, 540DB, 540EB, 540FB, 540GB
-
for the right wing, remove 640CB, 640DB, 640EB, 640FB, 640GB.
4. Procedure
_________ (Ref. Fig. 620/TASK 57-21-00-991-022) Subtask 57-21-00-110-069
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 lower surfaces of the bottom skin in the area of the access panel cutouts (rib bays 8-9, 9-10, 10-11, 11-12 and 12-13).
Subtask 57-21-00-280-050
B. Inspection
(1) Do a special detailed inspection of the upper and lower surfaces of the bottom skin. Inspect the areas of the access panel cutouts (rib bays 8-9, 9-10, 10-11, 11-12 and 12-13) (Ref. NTM 57-21-39 PART 6).
NOTE : If necessary, refer to the ASRM (Ref. ASRM 572100) for the
____ correct repair procedure. If the defect is not included in this repair, you must request a procedure from Airbus Industrie.
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Outer Wing Bottom Skin Rib Bay Cutouts Figure 620/TASK 57-21-00-991-022
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5. Close-up
________
Subtask 57-21-00-410-064
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Install the applicable access panels (Ref. TASK 57-27-11-400-001) and (Ref. TASK 28-10-00-910-002):
-for the left wing, install 540CB, 540DB, 540EB, 540FB, 540GB
-for the right wing, install 640CB, 640DB, 640EB, 640FB, 640GB. Subtask 57-21-00-650-075
B. Fuel Configuration
(1) Refuel (Ref. TASK 12-11-28-650-003), defuel (Ref. TASK 28-25-00-650-001) or transfer fuel (Ref. TASK 28-25-00-869-001) as necessary.
Subtask 57-21-00-942-069
C. Removal of Equipment
(1)
Remove the warning notice(s).
(2)
Remove the TOOL-ZERO LOCKING, FLAP SLAT CTL LEVER from the flap/slat control lever.
(3)
Remove the safety barriers.
(4)
Remove the access platform(s).
(5)
Remove the ground support and maintenance equipment, the special and
standard tools and all other items. R
R TASK 57-21-00-200-021
R Detailed Inspection of Outer Wing, Bottom Skin Lower Surfaces, around Access
R Door Cutouts in all Bays, between Ribs 13 and 27
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