(2)
24-22-00/201, Manual Control
(3)
51-31-01/201, Seals and Sealing
(4)
SSM 33-44-01
C. Consumable Materials
(1) A00247 Sealant - Chromate, BMS 5-95, Class B or C
D. Access
(1) Location Zone
100 Lower Half of Fuselage, Exterior
E. Procedure
S 424-058
(1) Do these steps to install the light assembly:
(a)
With the sealant (BMS 5-95, Class B or C), apply a seal between the light and the airplane skin (AMM 51-31-01/201).
(b)
Put the light subassembly in its position.
(c)
Install the light subassembly retaining screws.
(d)
Put the lens assembly in its position.
(e)
Install the lens assembly retaining screws.
(f)
Connect the electrical connector.
(g)
Install the lockwire on the electrical connector.
(h)
Put the bonding jumper in its position.
(i)
Install the nut to hold the bonding jumper.
(j)
Close the panel, 192HR, in the air conditioning bay (Ref 6-09-03/201).
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33-44-03
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 714-032
(2) Do a test of the light:
(a)
Remove the DO-NOT-CLOSE tag and close this circuit breaker:
1) P6 Main Power Distribution Panel
a) 6L31 ANTI COLL LTS - RED
(b)
Supply electrical power (Ref 24-22-00/201).
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 BEACON switch on the P5 panel to LWR.
(d)
Make sure the light is on.
(e)
Put the BEACON switch on the P5 panel to OFF.
(f)
Make sure the light is off.
(g)
Remove electrical power if it is not necessary
(Ref 24-22-00/201).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
WINGTIP STROBE LIGHT - MAINTENANCE PRACTICES
____________________________________________
1. General
_______
A. This procedure contains a task for the replacement of the strobe light lamp.
TASK 33-44-05-962-001
2. Lamp Replacement (Wingtip Strobe Light) (Fig. 201)
_______________________________________
A. Consumable Materials
(1) G01043 Cloth - Lint Free
B. References
(1)
24-22-00/201, Manual Control
(2)
33-44-05/401, Wingtip Strobe Lights
(3)
SSM 33-44-02
C. Access
(1) Location Zone
538 Wingtip - Left
638 Wingtip - Right
D. Procedure
S 012-014
WARNING: DO NOT TOUCH THE LIGHT ASSEMBLY FOR 10 MINUTES AFTER YOU REMOVE
_______ POWER. AN ELECTRICAL SHOCK FROM THE HIGH VOLTAGE IN THE LIGHT CAN CAUSE INJURY TO PERSONS.
(1)
Remove the strobe light assembly from the wingtip
(Ref 33-44-05/401).
S 022-010
(2)
Do these steps to remove the lamp:
(a)
Remove the mounting screws from the side plate of the light assembly.
(b)
Remove the side plate.
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