B. Procedure
S 024-002
(1) Remove the panel
(a)
Loosen the screws that hold the two aft retaining plates and the pressure relief panel together, but do not remove the screws.
(b)
Remove the screws that hold the pressure relief panel and the two forward retaining plates together.
NOTE: The screw removal from the forward retaining plates will
____ cause the top retaining plate and the 2 shims to move down into the wing. Be careful when you remove the panel because the shims and the top retaining plate may fall down.
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ACCESS PANEL, INBOARD LEADING EDGE, 611FB
PANEL
SEE
RELIEF PANEL
SEALANT APPLIED TO THE SKIN JOINT (EXAMPLE)
A
747-400
MAINTENANCE MANUAL
THE PANEL
(EXAMPLE)
BOTTOM AFT
FWD
RETAINING PLATE
PRESSURE RELIEF PANEL
WING STRUCTURE
SHIM (ROTATED 90` CW) A-A
Wing Leading Edge Pressure Relief Panel Installation Figure 401
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MAINTENANCE MANUAL
(c)
Remove the forward retaining plate at the bottom.
(d)
Pull the forward edge of the panel down and away from the wing skin.
(e)
Move the panel forward to release the aft edge of the panel from the aft retaining plates.
(f)
Remove and keep the forward retaining plate at the top and the shims you removed from the inner part of the wing.
TASK 57-31-03-404-003
3. Panel Installation__________________
A. Consumable Materials
(1)
B00184 Solvent - Presealing Cleaning, BMS 11-7
(2)
B00624 Compound - Lubricant BMS 3-28
(3)
A00099 Sealant - Silicone, RTV154
B. References
(1)
AMM 06-09-08/201, Wing Access Doors and Panels
(2)
AMM 20-51-01/201, Standard Torque Values
C. Access
(1) Location Zone
511 Leading Edge to Front Spar, Left
611 Leading Edge to Front Spar, Right
D. Procedure
S 424-004
(1) Install the Panel
NOTE: To install the two shims and the top retaining plate, you
____ will have to get access through access panel 611 FB. This installation will require 2 people. One person will install the screws, and the other person will hold the shims and top retaining plate in position.
(a)
Before you install the panel, remove the remaining sealant from the wing structure and the panel.
(b)
Make sure that you loosen the screws from the aft retaining plate.
(c)
Put the aft end of the panel into the space between the aft retaining plates at the top and bottom.
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(d) Open access panel 611 FB. 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：747-400 AMM 飛機維護手冊 機翼 WINGS(50)
