(2)
SSM 33-44-02
D. Access
(1) Location Zone
300 Tail Cone, Exterior
E. Procedure
S 862-030
(1) Do these steps to prepare for the lamp replacement:
(a) Open this circuit breaker and attach a DO-NOT-CLOSE tag:
1) P6 Main Power Distribution Panel a) 6L32 ANTI COLL LTS WHITE
WARNING:_______MAKE SURE THE APU IS OFF. THE APU MUST BE OFF TO PREVENT INJURY TO PERSONS AT THE TAIL CONE AREA.
(b) At the overhead panel, P5, put the APU START switch to the off position and attach a DO-NOT-OPERATE tag.
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33-44-07
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
WHITE ANTI-
COLLISION
LIGHT
SEE A
1. ELECTRICAL
CONNECTOR
3. TAIL STROBE
LIGHT
ASSEMBLY
BSEE
2. MOUNTING
SCREWS
(4 LOCATIONS)
FWD ACCESS HOLE
6. LAMP HOLDER
A
7. LAMP
8. LENS
5. SIDE PLATE
RETAINING
SCREWS
4. SIDE PLATE
BASE
STROBE LIGHT ASSEMBLY
B
Tail Cone White Anti-Collision Light Relamping
Figure 201
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
(c) Open this circuit breaker and attach a DO-NOT-CLOSE tag: 1) P83 Aft APU Equipment Control and Circuit Breaker Panel a) C8816 APU START
S 012-026
(2) Do these steps to remove the light assembly: (a) Remove the safety wire from the electrical connector (1). (b) Disconnect the electrical connector (1). (c) Remove the mounting screws (2) and the light assembly (3).
S 962-027
(3) Do these steps to replace the lamp: (a) Remove the screws in the side plate (4). (b) Remove the lamp (7) from the holders (6). (c) Clean all the electrical connections. (d) Clean the lens (8) with a soft cloth. (e) Put the replacement lamp (7) in the holders (6). (f) Install the side plate screws (4).
S 412-028
(4) Do these steps to install the light assembly: (a) Put the light assembly (3) in its position and install the mounting screws (4). (b) Connect the electrical connector (1). (c) Replace the safety wire on the electrical connector.
S 712-029
(5) Do these steps to do a test of the replacement lamp: (a) Supply electrical power (Ref 24-22-00/201). (b) Remove the DO-NOT-CLOSE tag and close this circuit breaker: 1) P6 Main Power Distribution Panel a) 6L32 ANTI COLL LTS WHITE
WARNING:_______ DO NOT LET THE STROBE LIGHT FLASH DIRECTLY IN YOUR EYES. THE INTENSITY OF THE STROBE LIGHT CAN CAUSE DAMAGE TO YOUR
EYES.
(c) Put the STROBE switch on the P5 panel to ON.
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