(3) Do this task: Leak Check of the Nitrogen Generation System, TASK 47-00-00-790-801.
(a) Repair the leaks that you find.
J. Put the Airplane Back to the Usual Condition
SUBTASK 47-11-01-410-001
(1) Close this access panel:
Number Name/Location
192BL ECS Ram Air Inlet Mixing Duct Panel - Forward
END OF TASK
TASK 47-11-01-000-802
4. Air Separation Module Assembly Removal
(Figure 402)
A. General
(1) This is an alternate task to remove the air separation module (ASM). The high flow valve [14],
NEADS duct [27], and OEA exhaust duct [21] are also removed as an assembly. This allows
for easier removal of the ASM.
B. References
Reference Title
36-00-00-860-806 Remove Pressure from the Pneumatic System (P/B 201)
47-21-00-700-802 Drain Cap - Fuel Leak Check (P/B 601)
C. 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
D. Access Panels
Number Name/Location
192BL ECS Ram Air Inlet Mixing Duct Panel - Forward
E. Prepare for the Removal
SUBTASK 47-11-01-860-002
(1) Do this task: Remove Pressure from the Pneumatic System, TASK 36-00-00-860-806.
(a) Make sure that the dual duct pressure gage shows 0.50 psig (3.45 kPa) or less in the L
and R pneumatic ducts.
SUBTASK 47-11-01-860-003
(2) Put the L PACK and R PACK selector switches, on the P5-10 air conditioning panel, to the OFF
position.
(a) Put DO-NOT-OPERATE tags on the L PACK and R PACK selector switches.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-11-01
Page 420
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
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