747-400 AMM 飞机维护手册 起落架 LANDING GEAR 9(26)

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SENSOR - NOSE GEAR UP PRIMARY, S396  3  1  NOSE WHEEL WELL AFT BULKHEAD  32-61-02 
SENSOR - WING GEAR DOOR WARNING ALTERNATE -LH, S395  4  1  L AND R WING GEAR WHEEL WELL FORWARD BULKHEAD  32-61-32
SENSOR - WING GEAR DOOR WARNING ALTERNATE -RH, S426  4  1  L AND R WING GEAR WHEEL WELL FORWARD BULKHEAD  32-61-32 
SENSOR - WING GEAR DOOR WARNING PRIMARY -LH, S407  4  1  L AND R WING GEAR WHEEL WELL FORWARD BULKHEAD  32-61-32 
SENSOR - WING GEAR DOOR WARNING PRIMARY -RH, S410 4  1  L AND R WING GEAR WHEEL WELL FORWARD BULKHEAD  32-61-32 
LH, S415SENSOR - WING GEAR DOWNLOCK ALTERNATE - 4  1  L AND R WING LANDING GEAR  32-61-20 
RH, S412 SENSOR - WING GEAR DOWNLOCK ALTERNATE - 4  1  L AND R WING LANDING GEAR  32-61-20 
SENSOR - WING GEAR DOWNLOCK PRIMARY -LH, S399  4  1  L AND R WING LANDING GEAR  32-61-20 
SENSOR - WING GEAR DOWNLOCK PRIMARY -RH, S405 4  1  L AND R WING LANDING GEAR  32-61-20 
SENSOR - WING GEAR TRUCK TILT ALTERNATE -LH, S615 4  1  L AND R WING LANDING GEAR  32-61-22 
SENSOR - WING GEAR TRUCK TILT ALTERNATE -RH, S614 4  1  L AND R WING LANDING GEAR  32-61-22 
SENSOR - WING GEAR TRUCK TILT PRIMARY -LH, S417 4  1  L AND R WING LANDING GEAR  32-61-22 
SENSOR - WING GEAR TRUCK TILT PRIMARY -RH, S416  4  1  L AND R WING LANDING GEAR  32-61-22 
SENSOR - WING GEAR UPLOCK ALTERNATE -LH, S1638  5  1  L AND R WING GEAR UPLOCK MECHANISM  32-61-21 
SENSOR - WING GEAR UPLOCK ALTERNATE -RH, S1639  5  1  L AND R WING GEAR UPLOCK MECHANISM 32-61-21 
SENSOR - WING GEAR UPLOCK PRIMARY -LH, S398 5  1  L AND R WING GEAR UPLOCK MECHANISM  32-61-21 
RH, S404 UNIT - (REF 32-09-00, FIG. 101) PROXIMITY SWITCH ELECTRONICS, M7838 SENSOR - WING GEAR UPLOCK PRIMARY - 5  1  L AND R WING GEAR UPLOCK MECHANISM 32-61-21 

Landing Gear Indication System - Component Index
Figure 101 (Sheet 2)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
FAULT ISOLATION/MAINT MANUAL

P7 PANEL
MAIN EICAS
DISPLAY,
M7345 (REF)

AUXILIARY EICAS DISPLAY, M7346 (REF)
BODY GEAR AFT WHEEL WELL BODY GEAR WHEEL WELL
SEE E SHT 2 SEE A
DOORSTOP SUPPORT BEAMS (REF)
FLT COMPT
WING LANDING GEAR
SEE M SHT 4
SEE P SHT 5
NOSE
LH, RH, LANDING
PRIMARY DOOR GEAR
WARNING SENSOR
SEE H SHT 3 (S408,S409) LH, RH, FWD ALTERNATE DOOR
LH SHOWN
WARNING SENSOR RH SIMILAR
(S428,S427)
BODY LANDING GEAR
BODY GEAR WHEEL WELL
SEE B
A
PRIMARY DOWNLOCK SENSOR (S401LH, S403RH)
UPPER
JURY STRUT (REF)

BODY GEAR LH, RH DOWNLOCK SENSOR ALTERNATE DOWNLOCK
SEE C
SENSOR (S414,
FWD
S413)
TRUCK TILT
LH SHOWN SENSOR
RH SIMILAR SEE D SHT 2
BODY LANDING GEAR  BODY GEAR DOWNLOCK SENSOR
CB
Landing Gear Indication System - Component Location
Figure 102 (Sheet 1)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 FAULT ISOLATION/MAINT MANUAL
LH, RH, BODY GEAR TRUCK TILT SENSOR (ALTERNATE S612,S613) (PRIMARY S419,S418)
BODY GEAR UPLOCK MECHANISM
SEE F
SUPPORT
(REF) SHOCK STRUT
FWD
WHEEL TRUCK (REF)
BODY GEAR AFT WHEEL WELL E FROM SHT 1
TRUCK TILT SENSOR D FROM SHT 1
NOSE WHEEL WELL FORWARD BULKHEAD
SEE G
FORWARD BULKHEAD (REF)
ALTERNATE DOOR WARNING SENSOR (S425)
LH, RH, BODY GEAR 
UPLOCK SENSORS 
(ALTERNATE S1636,S1637) 
(PRIMARY S400,S402)  PRIMARY DOOR 
WARNING SENSOR 
UP  (S406) 
INBD 
UPLOCK HOOK (REF) 

BODY GEAR UPLOCK MECHANISM
　
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