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 (Continued)
SUBTASK 47-00-00-010-001
(5) Open these access panels:
Number Name/Location
192BL ECS Ram Air Inlet Mixing Duct Panel - Forward
192CL ECS Access Door
192CR ECS Access Door
F. Electrical Test of the Nitrogen Generation System
NOTE: This procedure does a test of the NGS power, IBIT, and Operability indicator.
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
SUBTASK 47-00-00-710-002
(1) Do these steps to prepare for the electrical test:
(a) In the flight compartment, make sure that these fuel boost pump switches are in the OFF
position, on the fuel system module, P5–2:
1) FUEL PUMPS AFT 1
2) FUEL PUMPS FWD 1
3) FUEL PUMPS AFT 2
4) FUEL PUMPS FWD 2
5) FUEL PUMPS CTR L
6) FUEL PUMPS CTR R
(b) Make sure that the ENGINE START 1 and 2 switches are in the OFF or AUTO position,
on the engine start panel, P5.
(c) Set the L PACK and R PACK switches to the AUTO position, on the air conditioning
panel, P5-10.
(d) Set the ISOLATION VALVE switch to the CLOSE position.
(e) Set the engine BLEED 1 and engine BLEED 2 switches to the ON position.
(f) Set the BLEED APU switch to the OFF position.
ILF 971; ILF 101, 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 406, 409, 410, 412, 424, 425,
427-429, 451, 501-504, 507, 512-514, 516, 518, 524, 531-533, 535, 537, 552-556, 560-562, 567,
804-807, 812, 821, 822, 831, 832, 836, 837, 841, 842, 851, 852, 857, 858, 947, 948 POST SB
737-47-1003
(g) Set the L RECIRC FAN and R RECIRC FAN switches to the OFF position.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-00-00
Page 212
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF 402, 451, 452, 494-500, 503, 504, 509, 510, 514, 523-528, 541, 560-564, 567-569, 574-577, 581, 583, 585,
588-590, 592-599, 601-603, 606, 607, 610-615, 620, 625-627, 671, 672, 691-699, 832-835, 838, 856-858, 947,
948, 968-973, 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, 501, 502, 507, 508, 512, 513, 516, 518, 531-533, 535-537, 542,
552-556, 571-573, 686, 703, 707-710, 803-813, 821, 822, 831, 836, 837, 841, 842, 851, 852, 854, 855, 861-863,
871-874 POST SB 737-47-1002 OR POST SB 737-47-1003 OR POST SB 737-47-1015; ILF 491-493, 515,
519, 520, 530, 557, 559 POST SB 737-47-1002 OR POST SB 737-47-1015