757 最低设备清单 Minimum Equipment List (MEL) 2(28)

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12. Press the L SIDE WINDOW HEAT switch (P5) to the INOP (out) position.
13. Verify the L SIDE WINDOW message appears on the EICAS display.
 
 Press the L SIDE WINDOW HEAT switch (P5) to the ON (latched-in) position.
 Press the R SIDE WINDOW HEAT switch (P5) to the INOP (out) position.
 Verify the R SIDE WINDOW message appears on the EICAS display.
 Press the R SIDE WINDOW HEAT switch (P5) to the ON (latched-in) position.
 Remove electrical power, if no longer required.
 
NUMBER INSTALLED

  NUMBER REQUIRED FOR DISPATCH
1 0 REMARKS OR EXCEPTIONS
 
EICAS STATUS MESSAGES
None
PLACARD
As appropriate
 
  B757 - 200 MINIMUM EQUIPMENT LIST

EICAS STATUS MESSAGES
None
PLACARD
Windshield wiper control as appropriate
 

NUMBER INSTALLED
- NUMBER REQUIRED FOR DISPATCH
REMARKS OR EXCEPTIONS
0 (M+P) May be inoperative provided water
supply to the associated galley, lavatory, sink and drinking fountain is secured OFF.
 
EICAS STATUS MESSAGES
None
PLACARD
Affected galley and sinks as appropriate MAINTENANCE (M)
1. If drain mast heater(s) are inoperative, close affected galley and wash basin water supply shut-off valves located as follows:
 Galley shut-off valve.
1) The location of each galley shut-off valve is given on an identification placard installed in the galley.
 Lavatory shut-off valve.
1) Each lavatory shut-off valve is about ten inches above the floor inside the lavatory sink cabinet. (See illustration)
 
 
LAVATORY (TYPICAL)
 
 
DRAIN VALVE
 
ELECTRICAL CONNECTOR
WATER HEATER
INLET
WATER LINE
 
 
B757 - 200 MINIMUM EQUIPMENT LIST

 If both drain mast heaters are inoperative, open and collar circuit breakers DRAIN MAST HTR-AIR on the P37 R MISC ELEC EQUIP and DRAIN MAST HTR-GND on the P34 APU/EXTerNAL POWER panels.
 If either drain mast heater is inoperative, and it is desirable to deactivate one heater:
 Open and collar circuit breakers DRAIN MAST HTR-AIR and DRAIN MAST HTR-GND.
 Disconnect, cap and stow the power wire for the affected drain mast heater at the nearest terminal block (WDM 30-71-11).
 Close circuit breakers DRAIN MAST HTR-AIR and DRAIN MAST HTR-GND.
DRAIN MAST MAST
 
 
TYPICAL DRAIN MAST HEATER
 
  B757 - 200 MINIMUM EQUIPMENT LIST

REPAIR INTERVAL D 1 NUMBER INSTALLED
ITEM   0 NUMBER REQUIRED FOR DISPATCH
    REMARKS OR EXCEPTIONS
(O) May be inoperative provided alternate procedure according to Operational Procedures are used.
　
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