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747-400 MAINTENANCE MANUAL
~.............................................................................. | EICAS Maintenance Page Display | | Table 2 | ................................................................................ | | VALUES OR | | | APU MESSAGE | CONDITIONS | DESCRIPTION | ................................................................................ |AIR/GND MODE | | Airplane air/ground mode | ................................................................................ |APU STARTS | | Total number of APU starts | ................................................................................ |BLEED VALVE |OPEN/CLOSED | Position of the APU bleed air (isolation) | | | | valve | ................................................................................ |DC-A CHG |AMPS | Charge on the APU battery | ................................................................................ |DC-V |VOLTS | Voltage on the APU battery | ................................................................................ |DUCT PRESS |PSIA | Duct pressure of the left and right wing | | | | manifolds | ................................................................................ |DV RST CMD/POS |0% to 100% | Re-set position of the diverter valve | | | | control versus commanded position | ................................................................................ |ECS DEMAND |0% to 100% | Demand signals from the ECS system | ................................................................................ |EGT |DEG C | Exhaust gas temperature | ................................................................................ |ELEC AVAIL |OFF/ON | APU generator load is available | ................................................................................ |F FILTER |NORM/BYPASS | Condition of the APU fuel filter | ................................................................................ |FAN VALVE |OPEN/CLOSED | Position of the low oil pressure oil | ................................................................................ |FMU CMD/POS | | Position of the stepper motor on the fuel | | | | metering unit versus commanded position | ................................................................................ |FUEL SOL'S |OFF/ON | Condition of the two fuel shutoff solenoids| ................................................................................ |GEN 1/2 LOAD |KW/KW | Electrical load on the No. 1 and No. 2 | | | | ac generators | ................................................................................ |IGNITOR |OFF/ON | Condition of the APU ignition system | ................................................................................ |IGV CMD/POS |0% to 100% | Position of the IGV actuator versus | | | | commanded position |
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
~.............................................................................. | EICAS Maintenance Page Display | | Table 2 | ................................................................................ | | VALUES OR | | | APU MESSAGE | CONDITIONS | DESCRIPTION | ................................................................................ |INLET DOOR |OPEN/CLOSED | Position of the air inlet door | ................................................................................ |INLET PRESS |PSIA | Inlet pressure from the inlet pressure | | | | sensor (P1) | ................................................................................ |INLET TEMP |DEG C | Inlet temperature from the inlet | | | | temperature sensor (T1) | ................................................................................ |L/C EXIT TEMP |DEG C | Exit (load compressor) temperature from | | | | the air temperature sensor (T13) | ................................................................................ |L/C INLET TEMP |DEG C | Inlet (load compressor) temperature from | | | | the air temperature sensor (T12) | ................................................................................ |N1 |0% to 100% | Low pressure turbine rotor speed from the | | | | speed sensor (N1) | ................................................................................ |N2 |0% to 100% | High pressure turbine rotor speed from the | | | | speed sensor (N2) | ................................................................................ |OIL PRESS |NORM/LOW | Position of the low oil pressure switch | ................................................................................ |OIL QTY |0.00 to 1.00 | APU oil quantity | ................................................................................ |OIL TEMP |DEG C | APU oil temperature | ................................................................................ |OP MODE |ADP, DPZ, ECS, | Operation condition of the airplane | | |FLT, MES, MIN | pneumatic load | ................................................................................ |OPER HOURS | | APU operating hours | ................................................................................ |PNEU AVAIL |OFF/ON | Pneumatic load is available | ................................................................................ |SERIAL NO | | APU serial number | ................................................................................ |STARTER |OFF/ON | Condition of the starter motor | 2.................…...............…............................................1
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747-400 AMM 飞机维护手册 机载辅助动力 1(9)
