(2)
Access Panels
4405R Forward Cargo Door Access Panel
4406R Forward Cargo Door Access Panel
B. Procedure
S 024-002
(1)
Remove the screws and the washers from the retaining frame and remove the retaining frame.
S 024-003
(2)
Remove the grille.
S 974-013
(3)
Record the related position of the retainer and the retaining frame so that they can be reinstalled in the same related position.
(4)
Remove the valve plate, the seal and the retainer.
S 024-004
TASK 21-32-51-404-005
3. Bulkhead Blowout Panel Installation (Fig. 401)___________________________________
A. Access
(1) Location Zone
209 Forward Cargo Compartment
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737-300/400/500MAINTENANCE MANUAL
(2) Access Panels
4405R Forward Cargo Door Access Panel
4406R Forward Cargo Door Access Panel
B. Procedure
S 424-006
(1) Put the valve plate and the retainer in the opening in the bulkhead.
NOTE: Some retainers may have "THIS SURFACE AFT" stenciled on
____
one side.
GRILLE
BLOWOUT PANELSEE
A FORWARD CARGO COMPARTMENT
FRAME
Bulkhead Blowout Panel Installation Figure 401
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A 737-300/400/500MAINTENANCE MANUAL
(2) S 424-012Make sure that the retainer is installed in the same related position to the retaining frame as recorded during removal.
(3) S 424-007Make sure that the valve plate is correctly installed in the retainer.
(4) S 424-008Put the grille in front of the valve plate.
(5) S 424-009Put the retaining frame on the grille and the valve plate.
(6) S 424-010Install the washers and the screws.
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PRESSURIZATION INDICATION AND WARNING - DESCRIPTION AND OPERATION
_________________________________________________________________
1. General_______
A. The pressurization indication and warning system, which consists of lights, indicators and a cabin altitude warning system, permits monitoring of the cabin pressurization control system during its operation and provides aural and visual warning in case of pressurization system malfunction (Ref 21-31-00).
B. The following indicator lights are installed on the forward overhead panel and obtain power through 28v dc Bus No. 1.
(1)
The AUTO FAIL light indicates a failure in the automatic pressurization control mode. STANDBY light illuminated indicates automatic transfer to STBY mode.
(2)
The OFF SCHED DESCENT light indicates that the airplane is descending prior to obtaining the cruise altitude selected, with mode selector in AUTO.
(3) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：737-300 400 500 AMM 飞机维护手册 空调 AIR CONDITIONING 1(115)
