F/O Electrical System Panel, P6-12
Row Col Number Name
ILF 568, 583, 588, 592-596, 671, 672, 832, 836, 837, 841, 842, 968-970, 972, 973, 980-999
B 7 C01649 WINDOW HEAT POWER R3
ILF 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 401, 424, 425, 427-429, 507, 533, 535, 537,
556, 557
B 7 C00395 WINDOW HEAT POWER R3, R4 & R5
ILF 502, 503, 514, 524, 707-710; ILF 101, 156-199, 409, 410, 412, 416, 451, 501, 504, 508, 513, 515,
516, 518, 531, 532, 536, 541, 542, 552, 571, 572, 574, 576, 803-813, 821, 822, 831, 854-856, 861-863,
871-873 PRE SB 737-56-1017
B 7 C00395 WINDOW HEAT POWER R4 & R5
ILF ALL
B 8 C00394 WINDOW HEAT POWER RIGHT FRONT
B 9 C00392 WINDOW HEAT POWER LEFT SIDE
These circuit breakers are inoperative and should remain open:
F/O Electrical System Panel, P6-11
Row Col Number Name
ILF 151, 331, 402, 405, 406, 452, 509, 510, 512, 519, 520, 523, 525-528, 530, 553-555, 575, 703; ILF
101, 156-199, 301, 304, 308, 310, 314, 315, 317-319, 323, 332-399, 401, 409, 410, 412, 416, 424, 425,
427-429, 451, 501, 504, 507, 508, 513, 515, 516, 518, 531-533, 535-537, 541, 542, 552, 556, 557,
571-574, 576, 686, 803-813, 821, 822, 831, 854-856, 861-863, 871-873 POST SB 737-56-1017
B 7 C00229 WINDOW HEAT POWER L4 & L5 (INOP)
F/O Electrical System Panel, P6-12
Row Col Number Name
B 7 C00395 WINDOW HEAT POWER R4 & R5 (INOP)
ILF ALL
SUBTASK 30-42-31-800-002
(2) Do these steps to put the windshield wiper in the testing position:
(a) Supply electrical power to the airplane. To do this, do this task: Supply External Power,
TASK 24-22-00-860-813.
CAUTION
DO NOT OPERATE THE WIPER ON A DRY WINDSHIELD. THE WIPER
WILL CAUSE DAMAGE TO A DRY WINDSHIELD. ALWAYS SUPPLY
WATER TO THE WINDSHIELD BEFORE YOU OPERATE THE WIPER.
(b) Supply a continuous spray of clean water to the windshield.
NOTE: For windshields with a hydrophobic coating, deionized or distilled water is
recommended during the wiper test. Water with a high mineral content can cause
marks on the coated glass surface that are difficult to remove. If water with a high
mineral content is used on a windshield with a hydrophobic coating, flush the
windshield surface after the wiper test with deionized or distilled water, or remove
the remaining water on the windshield with a cotton cloth.
(c) Turn the applicable wiper switch to LOW.
(d) Do this step for the applicable circuit breaker to stop the arm assembly [3] at the
mid-stroke position on the windshield:
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
30-42-31
Page 213
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
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