737-300 400 500 AMM 飞机维护手册 防火 FIRE PROTECTION(6)

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 1.  General (Fig. 1 and 2)_______
 A.  Fire and overheat detection systems provide aural and visual alerts when overheat or fire is detected.
 B.  Engine fire detection (AMM 26-11-00)
 (1)  Dual-loop fire and overheat detection systems are in each engine area. Both loops of a system must sense fire in order for a fire alarm to be given. If one loop is inoperative, then the system may be set to operate on the operative loop.
 C.  APU fire detection (AMM 26-15-00)
 (1) A single-loop fire detection system is in the APU compartment.
 D.  Wheel well fire detection (AMM 26-17-00)
 (1)  A single-loop fire detection system is in the main landing gear wheel well.
 E.  Wing and lower aft body overheat detection (Ref 26-18-00)
 (1)  Two single-loop overheat detection systems are in the wings, the air conditioning bays, the aft cargo compartment, the keel beam, and the APU area.
 F.  Lavatory smoke detection (AMM 26-14-00)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
OVHT DET OVHT DET
WHEELBELL CUTOUT
L BOTTLER BOTTLE
WELLR
DISCHARGE DISCHARGE
A AA B A
B
FWD KEEL BEAM
ENGINES
FAULT
DISCH
NORMAL DISCH NORMAL DISCH ET
A
OVHT DET
XE
DET FAULT
12
ENG 1ENG 2L RTS
APU DET
LR
ISOL CHECK
OVERHEATA OVERHEATA T R
INOP A
LG G

A
TEST
FFIRE SWITCHES
APU BOTTLE
F
IO
(FUEL SHUTOFF)
DISCHARGED
I
NV
PULL WHEN ILLUMINATED
UA
NORMAL
GT
R
OH
LOCK OVERRIDE: PRESS
LPT ER
BUTTON UNDER HANDLE
FWD A/C PACKLEFT AFT A/C
P8-1 ENGINE FIRE CONTROL PANEL DET FAULT

R R APU
OVHT DET PACK OVHT DET DET CONTISOL CHECK CHECK
SW 2 LEFT WING OVHTDET INBD
NORMAL
DET CONTAFT KEEL BEAMCHECK
OVHT DET ISOL CHECK
DET FAULTSW 1
LEFT WING OVHT
DET OUTBD

NORMAL
OVHT DETAFT OVHT DETSECTION 58 SECTION 56 DET CONT
CHECK
DET FAULTUPISOL CHECK
SW 1
SW 2

LEFT WING,SW 3
NORM
BODY, APU
DN

SW 3 DET CONT
OVERHEAT
OVERHEAT
M237 COMPARTMENT OVERHEAT
CHECK
LEFT
CONTROL
ACCESSORY UNIT
CONT

ENG 1 STRUT CIRCUITS
UNIT
SW3

CAVITY OVHT DET
WING,BODY
OVERHEAT

OVERHEATTEST
OVERHEAT
AIR CONDITIONING
S658 AFT

LEFT SEC
MODULE
CARGO
AFT & FWD
KEEL BEAM

DET
DET
WING
L.DET

SW2 SW1
A/C PACK DET
RIGHT
RECIRC FAN
RIGHT
OFF
ENG 2 STRUT
WING,
CAVITY OVHT DET
BODY
WING,BODY
AUTO
OVERHEAT
OVERHEAT
CONTROL
40 60OVHT
AIR CONDITIONING
CIRCUITS
COMPARTMENT

MODULE
OVERHEAT

20 80 UNIT
PSI
BOEING

TEST EQUIP NO. M237
0 100
WHEEL L PACK R PACKMAIN WHEEL
OFF OFFWELL OVHT DET
WELL ISOLATION VALVE
WHEEL
OVERHEAT
AUTO AUTO
CLOSE WHEEL WELLCONTROL
WELL
ON ON TEST CIRCUITS ENGINE AND APU
AUT0
COMPARTMENT
WINGWINGOVERHEAT ACCESSORY
FIRE CONTROL
OPEN
ANTIANTI
　
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