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)
(Continued)
AMM Item Description AIPC Reference AIPC Effectivity
16 (cont.) 47-21-51-01-070 ILF 402, 451, 452, 503,
504, 508-510, 514, 516,
523, 524, 527, 528, 533,
535, 541, 560-562,
567-569, 573-577, 581,
583, 585, 588-590,
592-599, 601-603, 606,
607, 610-615, 620,
625-627, 671, 672,
691-699, 832-835, 838,
854-858, 861-863,
871-874, 947, 948,
968-973, 980-999
D. Location Zones
Zone Area
131 Center Section Wing Box, Body Station 540.00 to Body Station 663.75 - Left
211 Flight Compartment - Left
212 Flight Compartment - Right
E. Access Panels
Number Name/Location
192BL ECS Ram Air Inlet Mixing Duct Panel - Forward
F. Install the Check Valve
SUBTASK 47-21-04-010-011
(1) Go to the left ram air duct bay.
SUBTASK 47-21-04-090-001
(2) Remove the protective covers from the NEADS tube [10] ends.
SUBTASK 47-21-04-110-003
(3) Prepare these components for an electrical surface bond (SWPM 20-20-00):
(a) mating surfaces of the NEADS tube [10] ends where the bonding jumper [12] is attached.
(b) mating surface of the bonding jumper [12] (if removed).
SUBTASK 47-21-04-420-003
(4) Do these steps to install check valve [16]:
(a) Align the check valve [16] to make sure the FLOW ARROW points aft.
(b) Make sure that the word HINGE (or TOP) (stamped into the check valve [16]) is on the
top surface of the check valve [16].
(c) Put the check valve [16] in its position.
(d) Align the check valve [16] and the NEADS tube [10].
(e) Install the nut [15] on the check valve [16].
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-21-04
Page 416
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ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details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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