S 216-030
(1)
Inspect the No. 1 boost pump conduit for any damage.
S 216-031
(2)
Inspect the No. 4 boost pump conduit for any damage.
S 026-032
(3)
Remove and replace any damaged conduit (AMM 28-22-06/401).
E.
Put the Airplane Back to Its Usual Condition
S 836-033
(1)
Get out of and close the No. 2 or 3 inboard main fuel tank
(AMM 28-11-00/201).
(2)
Install the applicable access panel 545BB/645BB (AMM 28-11-02/401).
S 416-034
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28-22-06
ALL ú ú 01 Page 611 ú Feb 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
ENGINE FUEL FEED SYSTEM FUEL LINE - REMOVAL/INSTALLATION
________________________________________________________
1. General_______
A. This procedure contains information for the removal and the installation of the fuel lines for the engine fuel-feed system. This procedure also contains a task for the removal and installation of the fuel line in the strut area. Each line contains tubes, which are connected by tube couplings.
B. When it is necessary for removal and installation, long tubes can be cut into shorter sections. When you make the replacement tubes, cut the tubes in short sections. Make sure the length of the replacement tubes allow for the rigid couplings between each length of the tube.
C. Begin the tube installation on a structure that has a rigid coupling such as a bulkhead, valve, or pump fitting. Make sure the last connection point is a flexible full coupling.
D. Do not loosen a rigid coupling to help install other couplings in the fuel line.
TASK 28-22-07-004-001
2. Fuel Line Removal_________________
A. References
(1)
AMM 28-11-00/201, Fuel Tanks
(2)
AMM 28-26-00/201, Defueling
(3)
AIPC 28-15-03, Fig. 1
B.
Access
(1)
Location Zones
131 Center Section Wing Box, Left
132 Center Section Wing Box, Right
500 Left Wing
600 Right Wing
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28-22-07
ALL ú ú 01B Page 401 ú Oct 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
(2)
Access Panels
545AB Fuel Tank Access Door
545CB Fuel Tank Access Door
545DB Fuel Tank Access Door
546BB Fuel Tank Access Door
552AB Fuel Tank Access Door
552BB Fuel Tank Access Door
552CB Fuel Tank Access Door
552DB Fuel Tank Access Door
552EB Fuel Tank Access Door
552FB Fuel Tank Access Door
553BB Fuel Tank Access Door
553CB Fuel Tank Access Door
553DB Fuel Tank Access Door
553EB Fuel Tank Access Door
553FB Fuel Tank Access Door
553GB Fuel Tank Access Door
553HB Fuel Tank Access Door
553JB Fuel Tank Access Door
645AB Fuel Tank Access Door
645CB Fuel Tank Access Door
645DB Fuel Tank Access Door
646BB Fuel Tank Access Door
652AB Fuel Tank Access Door
652BB Fuel Tank Access Door
652CB Fuel Tank Access Door
652DB Fuel Tank Access Door
652EB Fuel Tank Access Door
652FB Fuel Tank Access Door
653BB Fuel Tank Access Door
653CB Fuel Tank Access Door
653DB Fuel Tank Access Door
653EB Fuel Tank Access Door
653FB Fuel Tank Access Door
653GB Fuel Tank Access Door
653HB Fuel Tank Access Door
653JB Fuel Tank Access Door
C.
Procedure
(1)
Defuel the applicable tank (AMM 28-26-00/201).
S 654-002
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本文链接地址：747-400 AMM 飞机维护手册 燃油 FUEL 3(4)
