R 3. Job Set-up__________
R Subtask 57-39-00-941-051
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 access platformin position below the applicable wing-tip,
R zone 534(634).
R 4. Procedure_________
R (Ref. Fig. 601/TASK 57-39-00-991-002)
R Subtask 57-39-00-210-051
R A. Inspection
R (1) Examine the drain holes in:
R - the opposite corners of the access panel 534AB(634AB)
R - the bottom of the wing-tip fence
R - the lower surface of the wing adjacent to the wing-tip glazing
R panel.
R (2) Make sure that they are not blocked.
R (3) If a hole in the access panel is blocked, remove the access panel.
R (4) For all the holes, remove all unwanted material from around the
R holes. Use a plastic probe to remove the blockage from the holes.
R (5) If you removed the access panel, install it when the blockage is
R clear.
R R Wing-Tip Drains Figure 601/TASK 57-39-00-991-002
1EFF : 1 1 1CES ALL 1 111 57-39-00 Page 603 Nov 01/03
R 5. Close-up
________
R Subtask 57-39-00-942-051
R A. Removal of Equipment
R (1) Make sure that the work area is clean and clear of tool(s) and other
R items.
R (2) Remove the warning notice(s).
R (3) Remove the safety barriers.
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.
LEADING EDGE AND LEADING EDGE DEVICES - DESCRIPTION AND OPERATION
_________________________________________________________________
1. General
_______
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 leading edge is forward of the front spar of the wing box, between the wing root and the wing tip. The leading edge has a fixed structure and five devices which are movable control surfaces.
2. Component Location
__________________
The fixed structure (Ref. 57-41-00) is between RIB1 and RIB27.
The five movable devices are:
-Slat 1, inboard of the engine pylon (Ref. 57-42-00)
-Slats 2 thru 5, outboard of the engine pylon (Ref. 57-43-00), (Ref. 57-44-00), (Ref. 57-45-00) and (Ref. 57-46-00).
3. Description
___________
A. Leading edge
The leading edge is a fixed structure of ribs and riblets to which nose skins are attached. The structure is strengthened by sub-spars. The five slats are connected, through the slat tracks, to the fixed structure.
These systems are also installed in the leading edge:
-
the drive mechanism for the slats (Ref. 27-84-00)
-
the ducting for the engine bleed air (Ref. 36-11-00)
-electrical, hydraulic and pneumatic installations
-
the environment protection system, between the wing root and RIB12 (Ref. 36-14-00)
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