(2)
AMM 52-31-00/201, Nose Cargo Door
(3)
AMM 52-32-00/001, Side Cargo Door
(4)
SSM 33-35-01 through 33-35-05
C. Access
(1) Location Zone
200 Main Passenger Deck
D. Lamp Replacement
S 862-053
(1) Remove the electrical power from the cargo lights:
(a) Open each applicable circuit breaker for the main deck cargo lights and attach a DO-NOT-CLOSE tag: 1) On the Power Distribution Center - Right, P415. 2) On the DC Distribution Panel, P180
S 962-065
(2) Replace the lamp
(a)
Remove the lens.
(b)
Carefully replace the lamp.
(c)
Clean the lens and the reflector with a clean dry cloth.
(d)
Install the lens.
E. Lamp Test
S 862-058
(1) Supply electrical power (AMM 24-22-00/201).
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A
747-400
MAINTENANCE MANUAL
LIGHT ASSEMBLY
QUICK-RELEASE FASTENER (2 LOCATIONS)
TYPICAL
MOUNTING
PROVISIONS
LAMP (2 LOCATIONS)
MOUNTING SCREW (4 LOCATIONS)
LENS ASSEMBLY
LIGHT ASSEMBLY (CEILING, SIDEWALL, AND SIDE CARGO DOOR RAMP LIGHTS
E47483
Main Deck Cargo Handling Lights - Relamping
Figure 201
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A 747-400 MAINTENANCE MANUAL
(2) S 862-059Remove each DO-NOT-OPERATE or DO-NOT CLOSE tag. (a) Close each circuit breaker that was opened.
(3) S 712-068Set the switch to the on position.
(4) S 012-066For a test of the ramp lights, open the cargo door (AMM 52-31-00/201 or AMM 52-32-00/001). (a) Make sure the new lamp comes on correctly.
(5) S 862-070Set the switch to the usual position.
(6) S 432-067Close the side cargo door if it is not necessary (AMM 52-31-00/201 or 52-32-00/001).
(7) S 862-056Remove the electrical power if it is not necessary (AMM 24-22-00/201).
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A
747-400 MAINTENANCE MANUAL
MAIN DECK CARGO HANDLING LIGHTS - ADJUSTMENT/TEST
_________________________________________________
1. General_______
A. This procedure contains a task to do an operational test of the main deck cargo handling lights.
TASK 33-35-00-705-001
2. Main Deck Cargo Handling Lights Operational Test________________________________________________
A. References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 52-31-00/201, Nose Cargo Door
(3)
AMM 52-32-00/001, Side Cargo Door
(4)
SSM 33-35-01 thru 33-35-05
B. Access
(1) Location Zone
200 Upper Half of the Fuselage
C. Prepare for the Test
S 865-003
(1)
Supply electrical power (AMM 24-22-00/201).
S 865-046
(2)
Close the circuit breakers for the main deck cargo lights and attach a DO-NOT-OPEN tag:
(a)
DC Power Distribution Panel, P180
(b)
Power Distribution Panel - Right, P415
(c)
Main Deck Control Panels
S 715-035
(3) Do a test of the ceiling and sidewall lights:
(a)
Push the switch on the control panel for the side cargo door.
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