(2)
AMM 78-31-00/201, Thrust Reverser System
(3)
IPC 26-11-01 Fig.1
(4)
WDM 26-11-11 thru 26-11-43
(5)
SSM 26-11-01 thru 26-11-04
C. Access
(1)
Location Zone
220 Control Cabin
412 Engine 1
422 Engine 2
432 Engine 3
442 Engine 4
(2)
Access Panel 415 and 416 Thrust Reverser Halves - Engine 1 425 and 426 Thrust Reverser Halves - Engine 2 435 and 436 Thrust Reverser Halves - Engine 3 445 and 446 Thrust Reverser Halves - Engine 4
D. Prepare for the Test
S 865-012
(1)
Supply electrical power (Ref 24-22-00/201).
S 865-013
(2)
Close these circuit breakers:
(a) P6 Main Power Distribution Panel 1) 6C1 ALTN PWR ENG FIRE/OVHT DET LOOP A ENG 1 2) 6C2 ALTN PWR ENG FIRE/OVHT DET LOOP A ENG 2 3) 6C3 ALTN PWR ENG FIRE/OVHT DET LOOP A ENG 3 4) 6C4 ALTN PWR ENG FIRE/OVHT DET LOOP A ENG 4 5) 6G10 ENG FIRE/OVHT DET ENG 2 LOOP A 6) 6G11 ENG FIRE/OVHT DET ENG 2 LOOP B 7) 6G12 ENG FIRE/OVHT DET ENG 4 LOOP A 8) 6G13 ENG FIRE/OVHT DET ENG 4 LOOP B 9) 6H10 ENG FIRE/OVHT DET ENG 1 LOOP A 10) 6H11 ENG FIRE/OVHT DET ENG 1 LOOP B 11) 6H12 ENG FIRE/OVHT DET ENG 3 LOOP A 12) 6H13 ENG FIRE/OVHT DET ENG 3 LOOP B
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747-400 MAINTENANCE MANUAL
S 865-014
(3) Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a) P6 Main Power Distribution Panel 1) 6G1 FUEL SHUTOFF VALVE ENG 1 2) 6G2 FUEL SHUTOFF VALVE ENG 2 3) 6G3 FUEL SHUTOFF VALVE ENG 3 4) 6G4 FUEL SHUTOFF VALVE ENG 4 5) 6H1 FIRE EXTINGUISHER ENG 1&3 B 6) 6H2 FIRE EXTINGUISHER ENG 1&3 A 7) 6H3 FIRE EXTINGUISHER ENG 2&4 B 8) 6H4 FIRE EXTINGUISHER ENG 2&4 A 9) 6H5 FIRE EXTINGUISHER APU 10) 6H6 FIRE EXTINGUISHER LOWER CARGO 11) 6C6 FIRE SW UNLOCK
S 015-015
(4)
Open the applicable thrust reverser half (Ref 78-31-00/201).
E.
Engine Fire Detection Indication System Test
S 865-067
(1)
Push and hold the FIRE/OVHT TEST switch on the Miscellaneous Switching Panel (P5).
S 845-068
(2)
Make sure these EICAS messages do not show.
(a)
DET FIRE/OVHT 1
(b)
DET FIRE/OVHT 2
(c)
DET FIRE/OVHT 3
(d)
DET FIRE/OVHT 4
(3)
Push the LSK next to <OTHER FUNCTIONS on the CMC main menu.
(4)
Push the LSK nest to <INPUT MONITORING.
S 865-069
S 865-070
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747-400 MAINTENANCE MANUAL
(5) S 865-071Write in "E/034/270/00"
(6) S 865-195Push the LSK next to "-/--/---/--".
(7) S 865-073Make sure bit 15 (engine 1 fire loop A) is set to zero.
(8) S 025-074Disconnect connector DT681D (upper aft fire detector loop A) at engine 1 (left side).
(9) S 425-075Install a jumper wire in loop A between the center pin of the connector, DT681D, and the connector shell of the fire detector element, T681.
S 865-196
(10)
Make sure bit 15 on the CMC input monitoring is set to one.
S 025-077
(11)
Remove the jumper wire from loop A.
S 865-078
(12)
Make sure bit 15 on the CMC input monitoring is set to zero.
S 425-079
(13)
Install a jumper wire in loop A between the center pin and the connector shell of the fire detector element, T681.
NOTE: Keep the loop A jumper wire connected.
____
S 865-080
(14)
Make sure bit 15 on the CMC input monitoring is set to one.
S 865-197 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 防火 FIRE PROTECTION 1(29)
