1)  Aft Center Miscellaneous Circuit Breaker Panel, P84 a) LOGO LIGHTS - LEFT b) LOGO LIGHTS - RIGHT

 (b)  
On the pilot's overhead panel, P5,
 push the LOGO switch to the ON position.

 (c)  
Make sure that the logo lights connected to the transformer come on.

 (d)  
Push the LOGO switch to the OFF position.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 S 412-054
 (8)  
Close the access panel on the lower surface of the horizontal stabilizer.

 S 942-100

 (9)  
Disconnect the attach lanyard from the horizontal stabilizer.

 S 862-101

 (10)
 Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 (a)  Overhead Circuit Breaker Panel, P7 1) 7E07, STAB TRIM S/O LEFT 2) 7E20, STAB TRIM S/O RIGHT
 S 862-102
 (11)
 On the pilot's control stand panel, P8, set the STAB TRIM 2 switch and the STAB TRIM 3 switch to the ON position.

 S 862-103

 (12)
 Remove electrical power if it is not necessary for other tasks (AMM 24-22-00/201).

 TASK 33-45-00-712-080
 5. Logo Lights - Operational Test
______________________________
 A. References
 (1)  AMM 24-22-00/201, Manual Control
 B. Access
 (1)  Location Zones
 222 Control Cabin, Right

 C. Procedure
 S 862-081
 (1)  
Supply electrical power (AMM 24-22-00/201).

 S 712-082

 (2)  
Do these steps to test the logo lights:

 (a)  
On the pilot's overhead panel, P5, push the LOGO switch to the ON position.

 (b)  
Make sure that all four logo lights come on.

 (c)  
Push the LOGO switch to the OFF position.

 (d)  
Make sure that all four logo lights go off.

 S 862-083
 (3)  Remove electrical power if it is not necessary for other tasks (AMM 24-22-00/201).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 TASK 33-45-00-822-058
 6.  Logo Light - Light Beam Adjustment (Fig. 201)__________________________________
 A. Equipment
 (1)  
24MIT65B00002 - Attach Lanyard - Saftety Harness Wing/Horizontal Stabilizer

 (2)  
Full Body Harness

 D.B. Industries
 3965 Pepin Avenue
 Redwing, MN 55066-1837
 Phone: (612) 388-8282

 (3)  
Sealing Gun

 (4)  
Spatula

 B. References
 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 51-31-01/201, Seals and Sealing

 C. Access
 (1)  Location Zone 222 Control Cabin, Right 334 Horizontal Stabilizer Rear Spar To Trailing Edge, Left 344 Horizontal Stabilizer Rear Spar To Trailing Edge, Right
 D. Procedure
 (1)  S 862-104Supply electrical power (AMM 24-22-00/201).
 (2)  S 862-105On the pilot's control stand panel, P8, set the STAB TRIM 2 switch and the STAB TRIM 3 switch to the CUTOUT position.
 (3)  S 862-106Open these circuit breakers and attach DO-NOT-CLOSE tags: (a) Overhead Circuit Breaker Panel, P7 1) 7E07, STAB TRIM S/O LEFT 2) 7E20, STAB TRIM S/O RIGHT

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