(Continued)
Reference Description
SPL-768 Sealant Removal Tool, Non-Metallic
737-600, -700, -800
Part #: ST982L-9 Supplier: 81205
Part #: ST982LF-9 Supplier: 62176
Part #: ST982LH-A-1 Supplier: 62176
D. Location Zones
Zone Area
633 Right Wing - Surge Tank, Rib 22 to Rib 25, Wing Station 643.50 to Wing Buttock
Line 616.75
E. Access Panels
Number Name/Location
633AB Surge Tank Access Door - Wing Station 655
F. Prepare for the Removal
SUBTASK 47-21-05-650-001
WARNING
DO ALL THE SAFETY PROCEDURES TO DEFUEL THE TANK AND TO GO
INTO IT. INJURY TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR
IF YOU DO NOT FOLLOW THE SAFETY PROCEDURES.
WARNING
DO NOT BREATHE THE AIR FROM THE FUEL TANK UNTIL YOU MAKE IT
SAFE. THE NITROGEN GENERATION SYSTEM DECREASES THE OXYGEN
IN THE AIR. IF YOU BREATHE AIR THAT DOES NOT HAVE SUFFICIENT
OXYGEN, DANGEROUS HEALTH CONDITIONS CAN QUICKLY OCCUR.
DANGEROUS HEALTH CONDITIONS INCLUDE NAUSEA,
UNCONSCIOUSNESS, AND CONVULSIONS. IF THE OXYGEN LEVEL OF
THE AIR THAT YOU BREATHE IS VERY LOW, IT CAN KILL YOU.
(1) Do this task to open this access door:
Surge Tank Access Door Removal, TASK 28-11-11-000-802.
Number Name/Location
633AB Surge Tank Access Door - Wing Station 655
SUBTASK 47-21-05-010-002
(2) Go into the right surge tank.
G. Remove the Cross Vent Check Valve
SUBTASK 47-21-05-910-001
(1) Hold the cross vent check valve [1] in its position.
SUBTASK 47-21-05-020-002
(2) Remove the two screws [5] and washers [3] that attach the cross vent check valve [1] to the
fuel dam [2].
SUBTASK 47-21-05-030-001
(3) Loosen the bolt [7] and washer [8] on the clamping device.
NOTE: Loosen the bolt enough to relieve the spring tension on the clamping device.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-21-05
Page 402
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ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details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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