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33-12-04
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
SEE A
FLIGHT COMPARTMENT
BSEE DIM/TEST SWITCH INDICATOR LIGHT
BOTH OFF LWR BEACON ON OFF NAV ON OFF STROBE ON OFF WING ON OFF LOGO BRT DIM TEST IND LTS
A
B
Pilots Indicator Lights Dim/Test Switch Installation Figure 401
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 034-007
(6)
Remove the nut and lockwasher that attach the switch to the panel.
S 024-008
(7)
Remove the switch from the panel.
TASK 33-12-04-404-009
3. Switch Installation (Fig. 401)___________________
A. References
(1)
AIPC 33-11-10
(2)
AMM 24-22-00/201, Manual Control
(3)
SSM 33-12-01
(4)
WDM 20-10-13
B. Access
(1) Location Zone
200 Upper Half of the Fuselage
C. Procedure
S 424-011
(1)
Install the switch in its position in the P5 panel.
S 434-012
(2)
Install the lockwasher and nut to attach the switch to the P5 panel.
S 434-013
(3)
Make a splice to add the replacement switch to the airplane wires (WDM 20-10-13).
(4)
Close the P5 panel.
(5)
Install the lightplate around the switch and tighten its screws.
S 864-016
(6)
Remove the DO-NOT-CLOSE tags and close each circuit breaker that was opened.
S 434-015
S 434-014
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A
747-400 MAINTENANCE MANUAL
S 714-022
(7) Do a test of the switch.
(a)
Supply electrical power (AMM 24-22-00/201).
(b)
At the P5 panel, set the switch to the test position. 1) Make sure the panel indicator lights come on.
(c)
Set the switch to the usual position.
(d)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
1.
2.
3.
A
747-400 MAINTENANCE MANUAL
FLIGHT COMPARTMENT ILLUMINATION LIGHTS - DESCRIPTION AND OPERATION
__________________________________________________________________
General
_______
A. Flight compartment illumination is provided by flight compartment access lights and dome lights. Access lights provide entryway illumination from outside the airplane to the flight deck. Dome lights provide general area illumination of the flight compartment.
(1)
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