Boeing 737-600 - Subtask 30-41-11-860-006; Subtask 30-41-11-860-007; Subtask 30-41-11-860-008; Subtask 30-41-11-860-019

ILF 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 561, 968-970, 972, 973, 980-999
(c) Make sure the window heat OFF light goes out.
ILF ALL
SUBTASK 30-41-11-860-006
(5) Press either MASTER CAUTION light.
(a) Make sure that the MASTER CAUTION light goes off.
(b) Make sure that the ANTI-ICE light goes off.
SUBTASK 30-41-11-860-007
(6) Wait 4 minutes.
SUBTASK 30-41-11-860-008
(7) Hold the WINDOW HEAT OVHT/ PWR TEST switch to PWR TEST not more than 60 seconds.
ILF 101, 151, 156-199, 401, 402, 405, 406, 409, 410, 412, 416, 424, 425, 427-429, 451, 452, 491-504,
507-510, 512-516, 518-520, 523-528, 530-533, 535-537, 541, 542, 552-557, 559, 560, 562-564, 567-569,
571-577, 581, 583, 585, 588-590, 592-599, 601-603, 606, 607, 610-615, 620, 625-627, 671, 672, 686,
691-699, 703, 707-710, 803-813, 821, 822, 831-838, 841, 842, 851, 852, 854-858, 861-863, 871-874,
947, 948, 971
(a) Make sure that the WINDOW HEAT ON lights stay on for each window.
ILF 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 561, 968-970, 972, 973, 980-999
(b) Make sure that the WINDOW HEAT OFF lights stay off for each window.
ILF ALL
SUBTASK 30-41-11-860-019
(8) Release the WINDOW HEAT OVHT/ PWR TEST switch.
ILF 101, 151, 156-199, 401, 402, 405, 406, 409, 410, 412, 416, 424, 425, 427-429, 451, 452, 491-504,
507-510, 512-516, 518-520, 523-528, 530-533, 535-537, 541, 542, 552-557, 559, 560, 562-564, 567-569,
571-577, 581, 583, 585, 588-590, 592-599, 601-603, 606, 607, 610-615, 620, 625-627, 671, 672, 686,
691-699, 703, 707-710, 803-813, 821, 822, 831-838, 841, 842, 851, 852, 854-858, 861-863, 871-874,
947, 948, 971
(a) If holding the WINDOW HEAT OVHT/ PWR TEST switch to PWR TEST causes the
OVERHEAT light to illuminate, the window heat ON lights shall go off within 70 seconds.
ILF 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 561, 968-970, 972, 973, 980-999
(b) If holding the WINDOW HEAT OVHT/ PWR TEST switch to PWR TEST causes the
OVERHEAT light to illuminate, the window heat OFF lights shall come on within 70
seconds.
ILF ALL
SUBTASK 30-41-11-860-009
(9) Put the WINDOW HEAT power switches in the OFF position.
F. BITE test
SUBTASK 30-41-11-740-005
(1) Set the applicable WINDOW HEAT control switch to ON.
SUBTASK 30-41-11-740-006
(2) Push both of the front panel BITE switches marked LAMP TEST and BITE LAMP RESET at
the same time. Hold for 4 seconds until the green BIT TEST OK light comes on.
NOTE: This will erase all existing faults stored in the WHCU memory.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
30-41-11
Page 503
D633A101-ILF Jun 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL