R 3. Job Set-up
__________
R Subtask 57-29-00-941-052
R A. Safety Precautions
R (1) Put the safety barriers in position.
R (2) Install the TOOL-ZERO LOCKING, FLAP SLAT CTL LEVER (98D27803500001)
R on the flap/slat control lever.
R (3) Put warning notices in the cockpit to tell persons not to operate the
R flaps or slats.
R (4) Put the adjustable access platform position below the applicable
R drain-holes in the access panels and the bottom skin of the wing,
R zones 521(621) and 522(622).
R 4. Procedure_________
R (Ref. Fig. 601/TASK 57-29-00-991-003, 602/TASK 57-29-00-991-004)
R Subtask 57-29-00-210-052
R A. Inspection of the Drain Holes and Hoses
R (1) Examine the outer wing drain holes and make sure that they are not
R blocked.
R (a) If a hole is blocked, remove the applicable access panel.
R (b) Remove all unwanted material from around the hole. Use a 5.0 mm
R (0.2 in.) dia. non-metallic probe to remove the blockage from the
R hole.
R (2) Examine the drain hole(s) in the dry bay(s) and make sure that they
R are not blocked.
R (a) If a hole is blocked, remove all unwanted material from around
R the hole. Use a 5.0 mm (0.2 in.) dia. non-metallic probe to
R remove the blockage from the hole.
R (3) To examine the drain holes of the slat-track cans, do the steps that
R follow:
R (a) Put the end of a 9.50 mm (0.375 in.) dia. soft rubber tube into
R each drain hose.
R R Outer-Wing Drains Figure 601/TASK 57-29-00-991-003
1EFF : 1 1 1CES ALL 1 111 57-29-00 Page 603 Nov 01/03
R R Slat-track Cans and Dry Bay Drains Figure 602/TASK 57-29-00-991-004
1EFF : 1 1 1CES ALL 1 111 57-29-00 Page 604 Nov 01/03
R (b) Use a low pressure air supply to blow through the tube.
R (c) If the hose is not clear, remove all unwanted material.
R (4) Find the cause of the blockage.
R (5) If you removed an access panel, install it.
R 5. Close-up________
R Subtask 57-29-00-942-052
R A. Removal of Equipment
R (1) Remove the warning notice(s).
R (2) Remove the safety barriers.
R (3) Make sure that the work area is clean and clear of tool(s) and other
R items.
R (4) Remove the access platform(s).
R (5) Remove the ground support and maintenance equipment, the special and
R standard tools and all other items.
WING TIP - DESCRIPTION AND OPERATION
____________________________________
1. Component Location
__________________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
(Ref. Fig. 001)
**ON A/C 301-399,
(Ref. Fig. 001A)
**ON A/C ALL
The wingtip assembly is attached to the outboard end of the wingbox, at
RIB27.
The wingtip assembly includes:
-
the wingtip
-
the wingtip fence.
2. Component Description
_____________________
A. Wingtip
The structure of the wingtip is made of aluminum alloy. The wingtip
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