747-400 AMM 飞机维护手册 燃油 FUEL 1(136)

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Location Zone 131 Center Section Wing Box, Left 132 Center Section Wing Box, Right 542 Inbd Main Tank (Part), Front Spar to Mid Spar, Left 544 Inbd Main Tank (Part), Mid Spar to Rear Spar, Left 552 Outbd Main Tank (Part), Mid Spar to Rear Spar, Left 553 Reserve Tank, Front Spar to Rear Spar, Left 555 Surge Tank, Front Spar to Rear Spar, Left 642 Inbd Main Tank (Part), Front Spar to Mid Spar, Right## 644 Inbd Main Tank (Part), Mid Spar to Rear Spar, Right 652 Outbd Main Tank (Part), Mid Spar to Rear Spar, Right 653 Reserve Tank, Front Spar to Rear Spar, Right 655 Surge Tank, Front Spar to Rear Spar, Left

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A
747-400
MAINTENANCE MANUAL

 (2)  
Access Panel
 131AZ Spanwise Beam Access Door
 131BZ Spanwise Beam Access Door
 131CZ Spanwise Beam Access Door
 132AZ Spanwise Beam Access Door
 132BZ Spanwise Beam Access Door
 552AB Fuel Tank Access Door
 552FB Fuel Tank Access Door
 555AB Surge Tank Access Door
 555BB Surge Tank Access Door
 652AB Fuel Tank Access Door
 652FB Fuel Tank Access Door
 655AB Surge Tank Access Door
 655BB Surge Tank Access Door

 C.
Remove the Fuel Vent Drain Valves From the Fuel Tanks

 S 654-002
 (1)  Defuel the applicable fuel tank (AMM 28-26-00/201).
 S 864-003
 WARNING:_______OBEY ALL THE FUEL TANK PURGING AND ENTRY PRECAUTIONS. YOU CAN CAUSE INJURY TO A PERSON AND CAUSE DAMAGE TO THE AIRPLANE.
 (2)  Remove the fuel in the applicable fuel tank and prepare it for an entry (AMM 28-11-00/201).
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MAINTENANCE MANUAL

 S 014-004
 (3)  If it is necessary, remove the other tank access doors to get access to the drain valve (AMM 28-11-02/401).
 NOTE: Refer to the table that follows for the access door numbers.
____
 ~................................................................. | DRAIN VALVES ACCESS | ................................................................... | TANK | VALVE | APPROXIMATE | ACCESS DOOR | | | | WING STATION | | | | | LOCATION | | ................................................................... | RESERVE | OUTBOARD | W.S. 1481 | 553KB 653KB | | NO. 2 NO. 3 .................................................... | | INBOARD | W.S. 1172 | 553AB 653AB | | | ..................................... | | | W.S. 1186 | 553AB 653AB | ................................................................... | OUTBOARD | OUTBOARD | W.S. 1162 | 552GB 652GB | | MAIN NO. 1 | ..................................... | NO. 4 | | W.S. 1136 | 552FB 652FB | | | | | 552GZ 652GZ | | .................................................... | | MIDDLE | W.S. 944.4 | 552AB 652AB | | .................................................... | | INBOARD | W.S. 760 | 546AB 646AB | ................................................................... | INBOARD | OUTBOARD | W.S. 760 | 545BB 645BB | | MAIN NO. 2 | ..................................... | NO. 3 | | W.S. 733 | 545BB 645BB | | | ..................................... | | | W.S. 690 | 545BB 645BB | | .................................................... | | INBOARD | W.S. 322 | 544AB 644AB | | | | WBL 150 | 544AZ 644AZ | ................................................................... | CENTER | LEFT | | 131EZ 131AZ | | | | | 131BZ 132AZ | | | | | 131DZ | ................................................................... | | RIGHT | | 131EZ 131AZ | | | | | 131BZ 132AZ | | | | | 132BZ | 2..............…..............…...............…...................1
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