NITROGEN GENERATION SYSTEM - MAINTENANCE PRACTICES
1. General
A. This procedure has these tasks:
(1) Airworthiness Limitation Precautions
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
(2) Nitrogen Generation System Precautions
(3) Ground Operation of the Nitrogen Generation System
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
(4) Nitrogen generation system - deactivation.
(5) Nitrogen generation system - activation.
TASK 47-00-00-910-802
2. Airworthiness Limitation Precautions
A. General
(1) Critical Design Configuration Control Limitations (CDCCLs)
(a) All occurrences of CDCCLs found in this chapter of the AMM are identified by this note
after each applicable CDCCL design feature:
1) NOTE: CDCCL - Refer to the task: Airworthiness Limitation Precautions,
TASK 47-00-00-910-802, for important information on Critical Design Configuration
Control Limitations (CDCCLs).
(b) Design features that are CDCCLs are defined and controlled by Special Federal Aviation
Regulation (SFAR) 88, and can be found in Section 9 of the Maintenance Planning Data
(MPD) document. CDCCLs are a means of identifying certain design configuration
features intended to preclude a fuel tank ignition source for the operational life of the
airplane. CDCCLs are mandatory and cannot be changed or deleted without the approval
of the FAA Oversight Office that is responsible for the airplane model Type Certificate. A
critical fuel tank ignition source prevention feature may exist in the fuel system and its
related installation or in systems that, if a failure condition were to develop, could interact
with the fuel system in such a way that an unsafe condition would develop without this
limitation. Strict adherence to configuration, methods, techniques, and practices as
prescribed is required to ensure the CDCCL is complied with. Any use of parts, methods,
techniques or practices not contained in the applicable CDCCL must be approved by the
FAA Oversight Office that is responsible for the airplane model Type Certificate.
(2) Airworthiness Limitation Instructions (ALIs)
(a) All occurrences of fuel tank system ALIs found in this chapter of the AMM are identified
by this note after each applicable ALI inspection feature:
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-00-00
Page 201
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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