(a) Tighten the hose clamps.
H. Operational Test - NGS Filter Assembly
SUBTASK 47-32-04-865-002
(1) Prepare the airplane for the operational test.
(a) Remove the safety tags and close these circuit breakers:
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
(b) Remove the DO-NOT-OPERATE tags from the L PACK and R PACK selector switches.
(c) Put the L PACK and R PACK selector switches to the AUTO position.
SUBTASK 47-32-04-790-001
(2) Do this task: Leak Check of the Nitrogen Generation System, TASK 47-00-00-790-801.
(a) With the NGS pressurized, do a leak check of the NGS filter assembly [1].
(b) Repair the leaks that you find.
I. Put the Airplane Back to the Usual Condition
SUBTASK 47-32-04-410-001
(1) Close this access panel:
Number Name/Location
192BL ECS Ram Air Inlet Mixing Duct Panel - Forward
END OF TASK
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-32-04
Page 418
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ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details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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