L ENGINE FIRE Warning Basic Left engine fire. N/A
L ENTRY DOORS Advisory Basic Two or more left entry doors 52-71-1
unlatched.
Message
Level Notes Condition MEL Item
L HYD GEN ON Status Option Left hydraulic generator powered N/A
- memory latched in air only.
L HYD QTY Advisory Basic Left reservoir low quantity. 29-33-1
29-33-2
L HYD RSVR PRES Advisory Basic Left hydraulic reservoir pressure low with both engines running. None
L HYD SYS MAINT Status Basic Left hydraulic pressure low with both engines running. None
L HYD SYS PRESS Caution Basic Left system pressure low. None
L ICE DETECTOR Status Prov’n Left automatic ice detection unit self detected fault 30-80-1
L ILS Advisory Basic Left ILS has failed. 34-31-1
L IRS DC FAIL Advisory Basic Left Inertial Reference System DC failure. 34-21-1
L IRS FAULT Advisory Basic Left Inertial Reference System fault. 34-21-1
L IRS ON DC Advisory Basic Left Inertial Reference System on 34-21-1
DC power.
L MLS Advisory Basic Left MLS has failed. None
L OIL FILTER Advisory Basic Left engine oil filter differential pressure approaches bypass. None
L OIL FILTER Status Basic Left engine oil filter differential pressure approaches bypass. None
L OIL SCAV CLOSE Status Basic Left engine #4 bearing scavenge valve closed at engine cruise thrust. 79-21-2
L OIL SCAV VAL Status Basic Left engine #4 bearing scavenge valve stuck open and leaking carbon seal when takeoff power selected. 31-61-4
L PACK OFF Advisory Basic Left pack switched off or compressor outlet temperature excessive. 21-51-1
21-51-3
L PACK TEMP Advisory Basic Left pack outlet or compressor outlet temperature excessive, or critical system failure detected by pack controller. 21-51-1
21-51-3
B757 - 200 MINIMUM EQUIPMENT LIST
Message Level Notes Condition MEL Item
L RECIR FAN Advisory Basic Left recirculation/electrical 21-25-1
equipment exhaust fan failed.
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本文链接地址：757 最低设备清单 Minimum Equipment List (MEL) 1(28)
