747-400 AMM 飞机维护手册 机翼 WINGS(33)

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9  BUSHING  ID  0.3135  0.3140  0.3170  0.005  X 
PIN  OD  0.3110  0.3120  0.3085  X 
10  BUSHING  ID  0.5625  0.5640  0.5681  0.0066  X 
PIN  OD  0.5605  0.5615  0.5559  X 
11  BUSHING  ID  0.4375  0.4390  0.4426  0.0056  X 
PIN  OD  0.436  0.437  0.4319  X 
12  BUSHING  ID  0.4375  0.4385  0.4426  0.0056  X 
PIN  OD  0.436  0.437  0.4319  X 
13  BUSHING  ID  0.3125  0.314  0.317  0.005  X 
PIN  OD  0.311  0.312  0.3075  X 
14  BUSHING  ID  0.3125  0.3135  0.317  0.005  X 
PIN  OD  0.311  0.312  0.3075  X 

NA - NOT APPLICABLE
Fixed Trailing Edge Rib WBL 163.0 Bushing Wear Limits Figure 603 (Sheet 3)
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 57-22-02
 ALL  ú ú 01 Page 610 ú Oct 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 WINGTIP FAIRING - DESCRIPTION AND OPERATION
___________________________________________
 1.  General (Fig. 1)_______
 A.  The left and right wingtip fairings are structurally similar and consist of panels attached to the wing closure ribs and winglet root rib (on airplanes with winglet). The wingtip fairings are divided into three sections, all of which are removable. These three sections are identified as the forward fairing, mid fairing, and aft fairing. To facilitate maintenance of the strobe and navigational lights, access doors are provided.
 B.  The forward fairing is formed from aluminum sheet. Bolts and nutplates attach the forward fairing to the wing leading edge closure rib and to the mid fairing. Strobe and navigational lights are installed in the forward fairing. An access door is provided for the lights.
 C.  The mid fairing is made of three individually removable sections: forward, aft lower, and aft upper. The forward section is made of an aluminum fairing attached to a fiberglass honeycomb fairing. The two aft sections are made of fiberglass honeycomb panels. On airplanes with winglets, the mid fairing transitions between the wing and the winglet. Bolts and nutplates attach the forward section to the wing closure ribs, the winglet and the aft sections. The aft sections are attached by bolts and nutplates to the wing closure rib, winglet, forward section, and aft fairing.
 D.  The aft fairing is assembled from fiberglass honeycomb panels attached to aluminum ribs and splice chords. The assembly is attached by bolts and nutplates to the wing trailing edge closure rib and the mid fairing.
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 57-23-00
 ALL  ú ú 01 Page 1 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 

(AFT INBOARD SECTION NOT SHOWN)
Wingtip Fairing Figure 1
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 57-23-00
 ALL  ú ú 01 Page 2 ú Oct 10/88
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 WINGTIP FORWARD FAIRING - REMOVAL/INSTALLATION
______________________________________________
 1.  General_______
 A.  This procedure contains two tasks:
 (1)  
The first task is the removal of the forward fairing wingtip.

 (2)  
The second task is the installation of the forward fairing wingtip.

 (3)  
Remove the fairing as follows:

 -
Open the circuit breakers

 -
Open the access door

 -Disconnect the electrical connectors
 -Remove the fasteners
　
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