SUBTASK 30-41-11-740-007
(3) Push the FAULT HISTORY switch on the WHCU.
(a) Make sure that the green BIT TEST OK lights come on for 15 seconds.
SUBTASK 30-41-11-740-008
(4) Push the LAMP TEST switch.
(a) Make sure that all six lights come on.
SUBTASK 30-41-11-740-009
(5) Push the BIT VERIFY switch on the WHCU.
(a) Make sure that no red lights come on and that the green BIT TEST OK light comes on in
less than 10 seconds and stays on for 15 seconds.
SUBTASK 30-41-11-740-010
(6) Push the BIT LAMP RESET switch on the WHCU.
(a) Make sure that the green BIT TEST OK light shuts off.
SUBTASK 30-41-11-740-011
(7) Set the applicable window heat control switch to OFF.
G. Put the Airplane Back to its Normal Condition.
SUBTASK 30-41-11-410-004
(1) Close this access panel:
Number Name/Location
117A Electronic Equipment Access Door
END OF TASK
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
30-41-11
Page 504
D633A101-ILF Feb 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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