2) Push the replacement lamp in its position from the front of the light assembly.
(c)
Put the NO SMOKING switch on the P8 panel to ON.
(d)
Put the SEATBELTS switch on the P8 panel to ON.
(e)
Close the lavatory doors for the applicable sign.
(f)
Make sure the replacement lamps are on.
(g)
Turn off all Passenger Information Sign switches from previous steps.
(h)
Replace the lens.
NOTE: Put the three guide pins in their related holes.
____ When the pins are in their position, push the lens from each end.
(i) Remove electrical power if it is not necessary
(AMM 24-22-00/201).
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A
747-400 MAINTENANCE MANUAL
PASSENGER INFORMATION SIGNS - REMOVAL/INSTALLATION
__________________________________________________
1. General (Fig. 401)_______
A. This procedure contains the following tasks.
(1)
Remove passenger information sign.
(2)
Install passenger information sign.
B. Passenger information signs are located in the upper deck passenger area and crew rest areas.
(1) The passenger information signs contain no smoking and fasten seat belt instructions for the passengers.
C. The passenger information signs get their power from the P414 power distribution panel CTR-L.
(1)
To remove power, open the apllicable circuit breakers for the NO SMOKING and FASTEN SEAT BELT signs on the P414 panel.
(2)
The passenger information signs are set to on or off by switches on the P8 panel module M7332.
TASK 33-24-03-004-038
2. Remove Passenger Information Sign (Fig. 401)____________________________________________
A. References
(1)
IPC 33-24-03
(2)
SSM 33-24-02
B. Access
(1) Location Zone
200 Upper Deck Passenger Cabin
C. Procedure
S 864-002
(1)
Open these circuit breakers on the P414 Main Distribution Center -Left and attach DO-NOT-CLOSE tags:
(a)
414G21 FSB SIGNS.
(b)
414G22 NS SIGNS.
(2)
Remove light assembly from panel.
(3)
Disconnect wires from the sign.
S 024-040
S 034-004
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400
MAINTENANCE MANUAL
FLT DECK DOOR
NO SMOKING
LKD w
UNLKD w
SEATBELTS
AUTO
AUTO
OFF
ON OFF
ON
M7332 PASS SIGNS
Passenger Information Signs Installation
Figure 401 (Sheet 1)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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本文链接地址:747-400 AMM 飞机维护手册 灯 LIGHTS(42)