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757 MAINTENANCE MANUAL
ENGINE ANTI-ICE VALVES - MAINTENANCE PRACTICES (MEL)
____________________________________________________
1. General_______
A. This procedure has these tasks:
(1)
Separate tasks to lock the engine anti-ice PRV (valve) in the closed or open position as shown in the Minimum Equipment List (MEL).
(a)
These tasks are necessary when the airplane is sent with an engine anti-ice PRV that does not operate.
(b)
The position of the engine anti-ice PRV, closed or open, should be indicated in the dipatch instructions.
(2)
A task to put the engine anti-ice PRV back to normal operating condition.
(3)
A task to make sure that the engine anti-ice PRV operates when the VALVE light is inoperative.
(a) This procedure is necessary when an airplane is dispatched with a light(s) for the engine anti-ice PRV that does not operate.
TASK 30-21-99-042-063
2. Put the Anti-Ice PRV Override Devices to the Valve Locked Closed Position_________________________________________________________________________ (Fig. 201)
A. References
(1)
AMM 06-43-00/201, Engine and Nacelle Strut Access Doors and Panels
(2)
AMM 70-50-02/201, Connection of Electrical Plugs
(3)
AMM 70-51-00/201, Torque Tightening Technique
(4)
AMM 71-11-04/201, Fan Cowl Panels
(5)
AMM 78-31-00/201, Thrust Reverser System
B. Access
(1)
Location Zones
410/420 No. 1 and No. 2 Powerplant
(2)
Access Panels
413AL Fan Cowl Panel - Left
423AL Fan Cowl Panel - Right
C. Prepare for the Procedure
S 042-027
WARNING: DO THE DEACTIVATION PROCEDURE FOR THE THRUST REVERSERS TO
_______ PREVENT THE OPERATION OF THE THRUST REVERSERS. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(1) Do the Thrust Reverser Deactivation for Ground Maintenance procedure (Ref 78-31-00/201).
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MAINTENANCE MANUAL
1. OVERRIDE ASSEMBLY A 2. BOLT (6 LOCATIONS) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 AMM 飞机维护手册 防冰和排雨 CHAPTER 30 - ICE AND RAIN PROTECTION(77)
