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A
737-300/400/500MAINTENANCE MANUAL
S 414-052
(3) Install the access door:
(a) Use the fasteners to attach the access door to the filter support (14 Locations).
S 414-017
(4) Install this access panel:
(a) Access Panel, Right - Forward Cargo Compartment Aft Bulkhead
S 864-023
(5) Remove the DO-NOT-OPERATE identifiers if no longer necessary.
TASK 21-21-23-004-055
6. AIRPLANES WITH A TWO PIECE FILTER INSTALLATION; Recirculation Fan HEPA Filter Removal (Fig. 401)_____________________________________
A. General
(1) One recirculation fan filter installation is installed in the air-conditioning distribution bay.
B. References
(1) AMM 12-31-01/201, Zone Diagrams
C. Access
(1) Location Zone (AMM 12-31-01/201)
210 Air Conditioning Distribution Bay
D. Procedure
S 864-056
(1) Set these switches to the OFF position and attach DO-NOT-OPERATE identifiers:
(a) P5-10 Air Conditioning Module
1) R PACK
2) L PACK
3) RECIRC FAN
S 014-057
(2) Remove this access panel:
(a) Access Panel, Right - Forward Cargo Compartment Aft Bulkhead
S 024-058
(3) Remove the recirculation fan HEPA filter:
(a)
Remove the fasteners (fourteen locations) which hold the access door to the filter support.
(b)
Remove the access door.
(c)
Remove the prefilter.
(d)
Remove the HEPA filter.
TASK 21-21-23-404-059
7. AIRPLANES WITH A TWO PIECE FILTER INSTALLATION; Recirculation Fan HEPA Filter Installation (Fig. 401)__________________________________________
A. References
(1) AMM 12-31-01/201, Zone Diagrams
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A
737-300/400/500MAINTENANCE MANUAL
B. Access
(1) Location Zone (AMM 12-31-01/201)
210 Air Conditioning Distribution Bay
C. Procedure
S 424-060
(1) Install the recirculation fan HEPA filter:
(a)
Install the HEPA filter.
(b)
Install the prefilter on top of the HEPA filter.
NOTE: Make sure the flow arrow on the side of the
____ prefilter media is correctly positioned.
(c)
Put the access door in position.
(d)
Install the fasteners (14 locations) to attach the access door to the filter frame.
S 414-061
(2)
Install this access panel:
(a) Access Panel, Right - Forward Cargo Compartment Aft Bulkhead
(3)
Remove the DO-NOT-OPERATE tags if no longer necessary.
S 864-043
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
RECIRCULATION FAN CHECK VALVE - REMOVAL/INSTALLATION
____________________________________________________
1. General_______
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