WARNING : OBEY THE SAFETY PROCEDURES WHEN YOU DO WORK IN A FUEL TANK.
_______
(1)
Obey the fuel safety procedures (Ref. TASK 28-10-00-910-001).
(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.
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(4) Put the safety barriers in position. Subtask 57-21-00-650-058
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 57-21-00-010-056
C. Get Access
(1)
Put the adjustable access platform in position below the applicable wing fuel tank, zone 540 (640).
(2)
Remove the applicable access panels (Ref. TASK 57-27-11-000-001) (Ref. TASK 57-27-11-000-002) (Ref. TASK 28-12-46-000-001) and (Ref. TASK 28-10-00-910-002):
-
for the left wing, remove 540CB, 540DB, 540EB, 540FB, 540GB, 540HB, 540JB, 540KB, 540LB, 540MB, 540NB, 540PB, 540QB, 540RB
-
for the right wing, remove 640CB, 640DB, 640EB, 640FB, 640GB, 640HB, 640JB, 640KB, 640LB, 640MB, 640NB, 640PB, 640QB, 640RB.
4. Procedure
_________
(Ref. Fig. 608/TASK 57-21-00-991-010) Subtask 57-21-00-110-057
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 aft face of the front spar (RIB8 thru RIB22).
Subtask 57-21-00-210-062
B. Inspection
(1) Examine the the aft face of the front spar (RIB8 thru RIB22). Make sure that:
-
there is no corrosion or damage
-
there are no scratches or scores
-
there are no loose or damaged fasteners
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Details of the Front Spar, RIBS 8 thru 22 Figure 608/TASK 57-21-00-991-010
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-the surface protection is in the correct condition.
NOTE : If necessary, refer to the (Ref. ASRM 572100) for the correct
____
repair procedure.
5. Close-up
________ Subtask 57-21-00-410-056
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), (Ref. TASK 57-27-11-400-002), (Ref. TASK 28-12-46-400-001) and (Ref. TASK 28-10-00-910-002):
-
for the left wing, install 540CB, 540DB, 540EB, 540FB, 540GB, 540HB, 540JB, 540KB, 540LB, 540MB, 540NB, 540PB, 540QB, 540RB
-
for the right wing, install 640CB, 640DB, 640EB, 640FB, 640GB, 640HB, 640JB, 640KB, 640LB, 640MB, 640NB, 640PB, 640QB, 640RB.
Subtask 57-21-00-650-059
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 57-21-00-942-057
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.
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TASK 57-21-00-200-009
Detailed Visual Inspection of Outer Wing Front Spar Aft Face between RIB22 and RIB27
WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______ START A TASK ON OR NEAR:
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