54-52-01
 ALL  ú ú 01 Page 401 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

FWD INBD
INSULATION
BLANKET ASSEMBLY

SEE A
STRUT
(CF6-80C2 ENGINES IS SHOWN,
PW4000 ENGINES IS EQUIVALENT)

Strut Inslation Blanket
Figure 401 (Sheet 1)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 54-52-01
 ALL  ú ú 01 Page 402 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
L02568
A
747-400
MAINTENANCE MANUAL

RIVET (QTY 2) NUTPLATE (38 LOCATIONS)
WASHER (38 LOCATIONS)
(19 LOCATIONS) WASHER 
(19 LOCATIONS) BOLT  PLATE COVER  (4 LOCATIONS) RIVET 
FWD  (2 LOCATIONS) ASSEMBLY BLANKET 
INBD 
1 COVER PLATE 
(LEFT SIDE IS SHOWN, RIGHT SIDE OPPOSITE) (PW4000 ENGINES) STRUT INSULATION BLANKET 
1  NOT INSTALLED ON ALL AIRPLANES  A 
Figure 401 (Sheet 2) Strut Inslation Blanket 

L02992
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 54-52-01
 ALL  ú ú 01 Page 403 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 B. References
 (1)  
AMM 71-00-02/401, Power Plant

 (2)  
AMM 71-11-04/201, Fan Cowl Panels

 (3)  
AMM 78-31-00/201, Thrust Reverser System

 C. Access
 (1)  Location Zones
 452 Nacelle Strut 1 - Torque Box
 462 Nacelle Strut 2 - Torque Box
 472 Nacelle Strut 3 - Torque Box
 482 Nacelle Strut 4 - Torque Box

 D. Procedure
 S 424-006
 (1)  
Install the strut insulation blanket:

 (a)  
Put the insulation blanket in its correct postion on the strut.

 (b)  
If the installation has capstans installed, make sure that the capstans go through the grommets in the the insulation blanket

 (c)  
Use the double twist method to install the lockwire that holds the insulation blanket in place. 1) Make sure that the lockwire makes a minimum of one complete

 turn around each of the capstans.

 (d)  
Install the bolts and washers in the remaining attach locations.

 (e)  
Install the cover plate.

 (2)  
Install the engine (AMM 71-00-02/401).

 S 414-008
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 54-52-01
 ALL  ú ú 01 Page 404 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 STRUT INSULATION BLANKETS - REPAIRS
___________________________________
 1.  General_______
 A.  This procedure has a task to repair the strut aluminized insulation blankets.
 TASK 54-52-01-308-023
 2.  Insulation Blanket Repairs__________________________
 A.  Equipment and Materials
 (1)  
A00482 Sealant - RTV106

 (2)  
AMA 138 Precured Aluminized fiberglass cloth (Style 112) Hi Temp Insulation Inc, Camarillo, CA 93010 TIG Hitco, Atlanta, GA 30318

 (3)  
Abrasive paper or cloth (280 grit)

 (4)  
Nextel 312 flameproof ceramic fabric (or equivalent) Hexel Corp., 1913 N. King, Sequin, TX 78155

 (5)  
Sealant - RTV 60 (RTV 106 alternative)

 (6)  
Stitching - 0.0018 Diameter, Class C

 (7)  
Solvent - MPK, acetone or equivalent

 (8)  
Wipers - cheesecloth, gauze or lint free equivalent

 B.  References
 (1)  AMM 71-00-02/401, Power Plant
 C.  Access
 (1)  Location Zones
　
中國航空網 m.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(50)