(WARNING PRECEDES)
WARNING
DO NOT TOUCH THE COMPONENTS OF THE NITROGEN GENERATION
SYSTEM WHEN THEY ARE HOT. WHEN THE COMPONENTS ARE HOT,
THEY CAN CAUSE INJURIES TO PERSONNEL.
(1) Open these circuit breakers and install safety tags:
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 567-569, 581, 583, 585, 588-590, 592-599, 601-603, 606, 607, 610-615, 620, 625-627, 691-699,
833-835, 838, 973, 980-999
D 17 C01657 NITROGEN GENERATION CONTROL
ILF 402, 452, 494-500, 509, 510, 523, 525-528, 560-564, 567-569, 576, 577, 581, 583, 585, 588-590,
592-599, 601-603, 606, 607, 610-615, 620, 625-627, 671, 672, 691-699, 833-835, 838, 857, 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, 451, 501-504, 507, 508, 512-514, 516, 518, 524,
531-533, 535-537, 541, 542, 552-556, 571-575, 686, 703, 707-710, 803-813, 821, 822, 831, 832, 836,
837, 841, 842, 851, 852, 854-856, 861-863, 871-874 POST SB 737-47-1003
E 15 C01680 NGS ALT PWR
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
These circuit breakers are inoperative and should remain open:
CAPT Electrical System Panel, P18-3
Row Col Number Name
ILF 494-500, 563, 564; ILF 560-562, 671, 672, 857, 858, 947, 948, 968-970, 972 PRE SB 737-47-1003
D 17 C01657 NITROGEN GENERATION CONTROL (INOP)
E 15 C01680 NGS ALT PWR (INOP)
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
E. Nitrogen Generation System - Tryout
NOTE: This tryout is to make sure that the nitrogen generation system is in a zero energy state.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-00-00
Page 225
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
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