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MAINTENANCE MANUAL
LBG DN S401
RBG DN S403
RBG TILT S418
LBG TILT S419 PRESS HYD SYS 1A
LWG TILT S417
RWG TILT S416 PRESS HYD SYS 4A
AUTO SPOILER - PRIMARY
RBG DN S413
LBG DN S414
LBG TILT S612
RBG TILT S613 PRESS HYD SYS 1B
RWG TILT S614
LWG TILT S615 PRESS HYD SYS 4B
AUTO SPOILER - ALTERNATE
SUPPLIES DISCRETE OUTPUT DRIVER
PSEU Logic Diagram
Figure 3 (Sheet 5)
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MAINTENANCE MANUAL
PRESS. HYD SYS 1A
PRESS. HYD SYS 1B
BITE GND MODE
PRESS. HYD SYS 4A PRESS. HYD SYS 4B
HYD SYS 1 PRESS. STATUS
HYD SYS 1 LOW PRESS. FAIL
HYD SYS 4 LOW PRESS. FAIL
HYD SYS 4 PRESS. STATUS
HYDRAULIC SYSTEM
PSEU Logic Diagram
Figure 3 (Sheet 6)
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MAINTENANCE MANUAL
S396 NG UP
S397 NG LOCK S399 LWG DN ALL GEAR DOWN
S401 LBG DN S403 RBG DN S405 RWG DN
ALL GEAR DOWN INDICATION - PRIMARY
S411 NG UP
S424 NG LOCK
S412 RWG DN
ALL GEAR DOWN S413 RBG DN S414 LBG DN S415 LWG DN
ALL GEAR DOWN INDICATION - ALTERNATE
SUPPLIES DISCRETE OUTPUT DRIVER
PSEU Logic Diagram Figure 3 (Sheet 7)
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IN FLIGHT
BITE ENABLE
GROUND TEST ENABLE
TEST INHIBIT FLAG
TEST ENABLE
TEST ENABLE DISAGREE
PSEU Logic Diagram
Figure 3 (Sheet 8)
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PRIMARY LANDING GEARFAILURES PRIMARY INPUT
MONITOR (FAIL COMPOSIT)
LANDING GEAR
MONITOR (FAIL COMPOSIT)
ALTERNATE INPUT
ALTERNATE LANDING GEAR FAILURES
MONITOR (FAIL COMPOSIT)
GEAR MONITOR
PSEU Logic Diagram
Figure 3 (Sheet 9)
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ENG 1 S1607 L ACTR LOCKED
ENG 1 S1608 R ACTR LOCKED
ENG 1 S1609 L COWL DEPLOYED
ENG 1 S1610 R COWL DEPLOYED
ENG 1-S1604 REVERSER STOWED L
ENG 1-S1605 REVERSER STOWED R
ENG 1 EITHER ACTUATOR
UNLOCKED
ENG 1 IN TRANSIT
ENG 1 REVERSER DEPLOYED
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