EICAS STATUS MESSAGES
HYD GEN ON HYD GEN VAL
PLACARD
Airplane flight log - HYD MOTOR GEN INOP
MAINTENANCE (M)
See item 24-25-1 and secure the HMG Valve closed as directed in MAINTENANCE (M) procedure.
B757 - 200 MINIMUM EQUIPMENT LIST
OPERATIONS (O)
1. For ETOPS, observe MEL requirements for operation of APU.
2. Average fuel consumption for APU operation is 90 kg per hour.
3. If all AC power is lost, Captain’s RDMI information may be lost. Captain’s RDMI information may be recovered by selecting ALTN on the First Officer’s IRS Instrument Source Selector Panel.
EICAS STATUS MESSAGES
None
PLACARD
Affected light - LIGHT INOP
OPERATIONS (O)
1. After starting engines verify that Bus Tie ISLN lights are not illuminated.
2. Verify that GEN CONT OFF lights are not illuminated.
3. Inflight illumination of both the ISLN and GEN CONT OFF lights for a bus indicates the bus is unpowered. Follow Operations Manual Non Normal procedures for AC BUS(ES) OFF.
B757 - 200 MINIMUM EQUIPMENT LIST
EICAS STATUS MESSAGES
None
PLACARD
As appropriate
MAINTENANCE (M)
Verify associated EICAS advisory message operates normally:
1. Start the associated engine.
2. Ensure that associated GEN CONT switch is selected ON.
3. Verify associated EICAS advisory message L(R) GEN OFF message does not annunciate.
4. Select associated GEN CONT switch OFF.
5. Verify associated EICAS advisory message L(R) GEN OFF message annunciates.
6. Select associated GEN CONT switch ON.
OPERATIONS (O)
Substitute the L(R) GEN OFF advisory message for the inoperative GEN CONT OFF light in the
GENERATOR OFF non-normal procedure.
NUMBER INSTALLED
1 NUMBER REQUIRED FOR DISPATCH
REMARKS OR EXCEPTIONS
0 (M+P) May be inoperative provided EICAS
message APU GEN OFF is verified to operate normally.
1 0 May be inoperative provided APU generator is not required for flight.
NOTE: The APU, and APU generator, may be required for ETOPS dispatch. EICAS STATUS MESSAGES
None
PLACARD
As appropriate
MAINTENANCE (M)
Verify the APU GEN OFF message operates normally as follows:
1. Start the APU.
2. Observe the APU RUN light illuminates.
3. Switch the APU GENERATOR CONTROL switch to OFF.
4. Observe EICAS sets APU GEN OFF Advisory message.
5. Return airplane to normal configuration.
OPERATIONS NOTE
Proviso wording “not required for flight” means use of the APU generator cannot be planned, but if there is
an IDG failure during flight it could be used.
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本文链接地址：757 最低设备清单 Minimum Equipment List (MEL) 1(68)
