(2)
AMM 20-21-03/601, Control Cables - Inspection/Check
(3)
AMM 25-59-01/401, Main Deck Compartment Cargo Lining Panel
(4)
AMM 32-00-40/001, Landing Gear Control Cables
(5)
AMM 32-21-03/601, Control Cables
(6)
IPC 32-51-51 Fig. 1
B.
Access
(1)
Location Zone 115 Area Between Nose Gear Wheel Well and Fuselage, LH 117 Electrical & Electronics Compartment, LH 211 Passenger Cabin - Nose to First Door, LH 212 Passenger Cabin - Nose to First Door, RH 221 Control Cabin, LH 222 Control Cabin, RH 715 Nose Landing Gear
C.
Prepare for Inspection
S 866-005
WARNING:_______THE FLIGHT COMPARTMENT SEAT MUST BE DISCONNECTED. FAILURE TO DISCONNECT THE SEAT CAN CAUSE AN ACCIDENTAL OPERATION OF THE FLIGHT COMPARTMENT SEAT. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(1)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P414 Main Power Distribution Panel
1) 414D08 CAPT PWR SEAT
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32-50-00
ALL ú ú 09 Page 601 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
Landing Gear Steering System Control Path Inspection
Figure 601 (Sheet 1)
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ALL ú ú 01 Page 602 ú Feb 10/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
FWD
TILLER HANDLE (CAPTAIN'S)
PIN
GUARD SIDEWALL
PANEL
STEERING
ROD
QUADRANT
NWS1A A
STEERING
CRANK
CLUTCH ARM
INTERCONNECT
LEVER
RUDDER PEDAL
INTERCONNECT ACTUATOR NO. 2 INTERCONNECT RUDDER PEDAL
RUDDER PEDAL ACTUATOR NO. 1
STEERING
MECHANISM
FORWARD PASSENGER CABIN
B
Landing Gear Steering System Control Path Inspection
Figure 601 (Sheet 2)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
CABLE DRUM ASSEMBLY (REF)
NWS1A NWS1B
FWD COMPENSATOR CABLE
NWS2B NWS2A C PIVOT LINKS CABLE COMPENSATOR MECHANISM (19 PLACES) BOLTS RETAINER COVER
COVER
ASSEMBLY VALVE METERING
STEERING CABLES (2 LOCATIONS) UPPER SUPPORT PLATE STEERING CYLINDER
CYLINDER STEERING RIGHT
LEVER SUMMING
ROD CONNECTING FWD
COVER SUPPORT BRACKET
CYLINDER STEERING LEFT D
Landing Gear Steering System Control Path Inspection Figure 601 (Sheet 3)
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32-50-00
ALL ú ú 01 Page 604 ú Feb 10/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
(b) P415 Main Power Distribution Panel 1) 415H32 F/O PWR SEAT
(2) S 016-002Remove the sidewall panels from the left and right side of the control cabin below the steering tillers.
(3) S 016-020Remove the left sidewall lining in the passenger cabin which is found forward of the first door (AMM 25-59-01/401).
(4) S 016-004Remove the forward floor panel in the electrical and electronics compartment.
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