(2)
AIPC 33-51-06
(3)
SSM 33-51
(4)
WDM 33-51
C. Access
(1) Location Zone
200 Upper Half of Fuselage
D. Lamp Replacement
S 862-051
(1) Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a) On the overhead circuit breaker panel, P7: 1) 7G14, CHG EMER LT
S 012-041
WARNING:_______BE CAREFUL WHEN YOU ARE NEAR AN OPEN DOOR. MAKE SURE THAT YOU INSTALL A SAFETY BARRIER IN THE DOOR. IF YOU FALL FROM THE DOOR, IT CAN CAUSE INJURIES.
(2)
Open the door sufficiently to get access to the light (AMM 52-23-00/001).
(3)
Install the safety barrier for the door.
S 962-042
(4)
Carefully replace the lamp.
S 492-046
(a) To get access to the lamp, put your hand between the door lining and the door.
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A
747-400
MAINTENANCE MANUAL
UPPER DECK DOOR
(EXAMPLE)
Door (Slide) Lights - Lamp Replacement
Figure 201
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E76491
A
747-400 MAINTENANCE MANUAL
S 862-052
(5) Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a) On the overhead circuit breaker panel, P7:
1) 7G14, CHG EMER LT
E. Lamp Test
S 712-043
CAUTION: KEEP THE OPERATION OF THE EMERGENCY LIGHTS TO LESS THAN A ONE
_______ MINUTE TIME. THE BATTERIES THAT SUPPLY THE ELECTRICAL POWER TO THE EMERGENCY LIGHTS WILL ONLY OPERATE FOR 15 MINUTES WHEN FULLY CHARGED.
(1) On the pilot's overhead panel, P5,
set the EMER LIGHTS switch to the ON position.
(a) Make sure the new lamp comes on correctly.
S 862-044
(2)
Set the EMER LIGHTS switch to the OFF position.
(a) Make sure the emergency lights go off.
(3)
Close the door (AMM 52-23-00/001).
(4)
Remove the safety barrier.
S 412-047
S 092-045
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A
747-400 MAINTENANCE MANUAL
DOOR (SLIDE) LIGHTS - REMOVAL/INSTALLATION
__________________________________________
1. General_______
A. This procedure has these tasks:
(1)
Upper Deck Door (Slide) Light - Removal
(2)
Upper Deck Door (Slide) Light - Installation
TASK 33-51-06-004-001
2. Upper Deck Door (Slide) Light - Removal (Fig. 401)_______________________________________
A. Equipment
(1) 2PRE65B26200 Type A door safety barrier
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