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
TASK 47-00-00-040-802
5. Nitrogen Generation System - Deactivation
A. General
(1) This task will deactivate the nitrogen generation system.
B. Location Zones
Zone Area
134 Main Landing Gear Wheel Well, Body Station 663.75 to Body Station 727.00 - Right
192 Lower Wing-To-Body Fairing - Under Wing Box
531 Left Wing - Center Fuel Tank, Rib 1 to Rib 5
631 Right Wing - Center Fuel Tank, Rib 1 to Rib 5
633 Right Wing - Surge Tank, Rib 22 to Rib 25, Wing Station 643.50 to Wing Buttock
Line 616.75
C. Access Panels
Number Name/Location
192DR ECS High Pressure Access Door
D. Procedure
SUBTASK 47-00-00-020-002
WARNING
OBEY THE SUBSEQUENT STEPS FOR ACCESS PANELS IDENTIFIED WITH
A NITROGEN GENERATION SYSTEM PLACARD. IF THERE IS A LEAK IN THE
NITROGEN GENERATION SYSTEM, IT WILL DECREASE THE OXYGEN IN
THE AIR THAT YOU BREATHE. IF YOU BREATHE AIR THAT DOES NOT HAVE
SUFFICIENT OXYGEN, DANGEROUS HEALTH CONDITIONS CAN QUICKLY
OCCUR.
WARNING
WHEN YOU DO A TEST OF THE SYSTEM, MAKE SURE THAT THERE IS
SUFFICIENT AIRFLOW IN THE AREA. USE LIFE SUPPORT EQUIPMENT IF
YOU THINK THAT THERE IS A HIGH NITROGEN CONCENTRATION. LOW
OXYGEN LEVELS IN THE AIR ARE DANGEROUS TO PERSONNEL.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-00-00
Page 224
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ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details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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