S 415-048

 (25)
 Torque (clockwise) all keeper adjusters to 195-205 pound-inches (22-23 Nm) for assemblies with a hex head adjusting nut.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 54-62-03
 ALL  ú ú 01 Page 509 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 415-049
 (26) Torque the square head nut to 45 pound-inches (5 Nm) for designs that use the square head adjusting nut.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 54-62-03
 ALL  ú ú 01 Page 510 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 TRAILING EDGE FAIRING DOORS - INSPECTION/CHECK
______________________________________________
 1.  General_______
 A.  This procedure contains the data to do an inspection of the trailing edge (T/E) door latches.
 (1) The inspection of the latches has these parts:
 (a)
Open the T/E fairing doors

 (b)
Do an inspection of the latches and keepers

 (c)
Adjust the latches

 (d)
Close the T/E doors.

 TASK 54-62-03-206-001
 2.  T/E Fairing Door Latch Inspection_________________________________
 A.  References
 (1)
AMM 54-62-00/201, Nacelle Strut Access Panels

 (2)
AMM 54-62-03/501, Trailing Edge Fairing Doors

 B.  Access
 (1)  
Location Zone
 454 Nacelle Strut 1 - Aft Fairing
 464 Nacelle Strut 2 - Aft Fairing
 474 Nacelle Strut 3 - Aft Fairing
 484 Nacelle Strut 4 - Aft Fairing

 (2)  
Access Panel 454 Trailing Edge Fairing Door - Nacelle Strut 1 464 Trailing Edge Fairing Door - Nacelle Strut 2 474 Trailing Edge Fairing Door - Nacelle Strut 3 484 Trailing Edge Fairing Door - Nacelle Strut 4

 C.  Procedure
 S 016-002
 (1)
Open the T/E fairing doors (AMM 54-62-00/201).

 S 166-003

 (2)
Clean these parts:

 (a) Each latch trigger
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 54-62-03
 ALL  ú ú 01 Page 601 ú Feb 10/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 (b)  
Each latch hook area

 (c)  
The area of the keeper.

 S 216-004
 (3)  Do an inspection of each latch as follows:
 (a)  
Do a check for damage of the latch and keeper components that follow: 1) The housing 2) The lever 3) The springs 4) The trigger 5) The rivets 6) The cross pins.

 (b)  
Do a visual check for cracks in the components that follow: 1) The latch and keeper housing 2) The latch hooks 3) The handles 4) The triggers 5) The eyebolts.

 (c)  
Do a check for the correct tension of the springs
 (Ref 54-62-03/501).

 (d)  
Do a check for loose rivets and rivet holes that are out of tolerance.

 S 426-005
 (4)  Replace the latch and keeper if you find one of these conditions:
 NOTE: If you remove a latch and keeper from the door, you must
____
 install a new latch and keeper.

 (a)  
Structurally damaged components

 (b)  
Cracks

 (c)  
A latch that does not engage or lock.

 S 826-006
 (5)  
Do the procedure to adjust the latches on the T/E doors (AMM 54-62-03/501).

 (6)  
Close the T/E fairing doors (AMM 54-62-00/201).

 S 416-007
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
　
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 NACELLES/PYLONS(102)