SUBTASK 47-31-02-010-005
(2) Make sure this access panel is closed:
Number Name/Location
621GB Refuel Access Panel - Slat Station 143.27
SUBTASK 47-31-02-860-002
(3) Make sure that the airplane is in the ground mode (TASK 32-09-00-860-802).
SUBTASK 47-31-02-865-003
(4) Make sure that these circuit breakers are closed:
CAPT Electrical System Panel, P18-3
Row Col Number Name
ILF 402, 452, 509, 510, 523, 525-528, 576, 577, 971; ILF 101, 151, 156-199, 301, 304, 308, 310, 314,
315, 317-319, 323, 331-399, 401, 405, 406, 409, 410, 412, 416, 424, 425, 427-429, 451, 501-504, 507,
508, 512-514, 516, 518, 524, 531-533, 535-537, 541, 542, 552-556, 560-562, 567, 571-575, 671, 672,
686, 703, 707-710, 803-813, 821, 822, 831, 832, 836, 837, 841, 842, 851, 852, 854-858, 861-863,
871-874, 947, 948, 968-970, 972, 973 POST SB 737-47-1003
D 17 C01657 NITROGEN GEN CONT
ILF 568, 569, 581, 583, 585, 588-590, 592-599, 601-603, 606, 607, 610-615, 620, 625-627, 691-699,
833-835, 838, 980-999; ILF 567, 973 POST SB 737-47-1003
D 17 C01657 NITROGEN GENERATION CONTROL
ILF 402, 452, 509, 510, 523, 525-528, 568, 569, 576, 577, 581, 583, 585, 588-590, 592-599, 601-603,
606, 607, 610-615, 620, 625-627, 691-699, 833-835, 838, 971, 980-999; ILF 101, 151, 156-199, 301,
304, 308, 310, 314, 315, 317-319, 323, 331-399, 401, 405, 406, 409, 410, 412, 416, 424, 425, 427-429,
451, 501-504, 507, 508, 512-514, 516, 518, 524, 531-533, 535-537, 541, 542, 552-556, 560-562, 567,
571-575, 671, 672, 686, 703, 707-710, 803-813, 821, 822, 831, 832, 836, 837, 841, 842, 851, 852,
854-858, 861-863, 871-874, 947, 948, 968-970, 972, 973 POST SB 737-47-1003
E 15 C01680 NGS ALT PWR
SUBTASK 47-31-02-010-006
(5) Open this access panel:
Number Name/Location
192CR ECS Access Door
SUBTASK 47-31-02-010-007
(6) Go to the NGS BDU location.
NOTE: The BDU is in the right air conditioning compartment on the right 41 beam, aft of the
forward bulkhead.
F. Standby Mode
SUBTASK 47-31-02-740-002
(1) The BDU is in the standby mode during these conditions:
(a) NGS controller cold start (approximately 5 minutes)
(b) No BDU input for 5 minutes.
NOTE: The BDU will not go into the standby mode if a BDU test is in progress.
SUBTASK 47-31-02-740-003
(2) When the BDU is in the standby mode, the message display will not show.
SUBTASK 47-31-02-740-004
(3) Push the ON/OFF button on the control panel to start the operation of the BDU.
SUBTASK 47-31-02-740-005
(4) The main menu item, “Existing Faults?” will show.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-31-02
Page 202
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF 402, 452, 509, 510, 523, 525-528, 568, 569, 576, 577, 581, 583, 585, 588-590,
592-599, 601-603, 606, 607, 610-615, 620, 625-627, 691-699, 833-835, 838, 971, 980-999;
ILF 101, 151, 156-199, 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 401, 405,
406, 409, 410, 412, 416, 424, 425, 427-429, 451, 501-504, 507, 508, 512-514, 516, 518,
524, 531-533, 535-537, 541, 542, 552-556, 560-562, 567, 571-575, 671, 672, 686, 703,
707-710, 803-813, 821, 822, 831, 832, 836, 837, 841, 842, 851, 852, 854-858, 861-863,
871-874, 947, 948, 968-970, 972, 973 POST SB 737-47-1003
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