(2)  
Make sure these circuit breakers are closed:

 (a)  P84 Panel
 1) AFT LIGHTING
 2) LIGHTS TAIL & APU COMP

 S 715-078
 (3) Do a test of the light in the tail cone compartment:
 (a)  
Put the FWD TAIL CONE LIGHTS and the AFT TAIL CONE LIGHTS switches to ON.

 (b)  
Make sure the lights in the forward and the aft tail cone compartment are on.

 (c)  
Put the FWD TAIL CONE LIGHTS and the AFT TAIL CONE LIGHTS switches to OFF.

 (d)  
Make sure the lights in the forward and the aft tail cone compartment are off.

 S 865-051
 (4)  Remove electrical power if it is not necessary (Ref 24-22-00/201).
 TASK 33-31-00-705-052
 8.  Lights in the APU Compartment Operational Test______________________________________________
 A. References
 (1)  
24-22-00/201, Manual Control

 (2)  
IPC 33-31-00

 (3)  
SSM 33-31-40

 B. Access
 (1)  Location Zone
 300 APU Compartment

 C. Procedure
 S 865-053
 (1)  Supply electrical power (Ref 24-22-00/201).
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747-400
MAINTENANCE MANUAL

 S 865-054
 (2)  Make sure these circuit breakers are closed:
 (a)  P84 Panel 1) AFT LIGHTING 2) LIGHTS TAIL & APU COMP
 S 715-079
 (3) Do a test of the lights in the APU compartment:
 (a)  
Put the APU LIGHT switch to ON.

 (b)  
Make sure the lights in the APU compartment are on.

 (c)  
Put the APU LIGHT switch to OFF.

 (d)  
Make sure the lights in the APU compartment are off.

 S 865-059
 (4)  Remove electrical power if it is not necessary (Ref 24-22-00/201).
 TASK 33-31-00-705-060
 9. Lights in the Fueling Station Operational Test
______________________________________________
 A. References
 (1)  
24-22-00/201, Manual Control

 (2)  
SSM 28-21-01

 (3)  
WDM 28-21-14

 B. Access
 (1)  Location Zone 521 Left/Right Pressure Fueling Bay
 C. Procedure
 S 865-061
 (1)  
Supply electrical power (Ref 24-22-00/201).

 S 865-062

 (2)  
Make sure these circuit breakers are closed:

 (a)  
P414 Power Distribution Center - Left 1) 414F22 LIGHT FUELING

 (b)  
P180 DC Power Distribution Panel 1) 180B2 FUELING LIGHTS HOT

 S 715-063
 (3) Do a test of the lights in the fueling station:
 (a)  
Open the right fueling station door.

 (b)  
Make sure the right fueling station light comes on.

 (c)  
Close the right fueling station door.

 (d)  
Open the left fueling station door.

 (e)  
Make sure the left fueling station light comes on.

 (f)  
Close the left fueling station door.

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747-400 MAINTENANCE MANUAL
 S 865-064
 (4)  Remove electrical power if it is not necessary (Ref 24-22-00/201).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 33-31-00
 ALL  ú ú 01 Page 508 ú Jun 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 MAIN DECK CARGO HANDLING LIGHTS - DESCRIPTION AND OPERATION
　
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