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XXX HZ Frequency 375- 425 Hz _ Frequency notin range _ Invalid data EICAS OUTLINE GREEN AMBER WHITE HALF INTENSITY MAGENTA HALF INTENSITY CYAN GEN Generatoron Generatoroff with engine / APU running Both generator and engine / APU are off Invalid data _ IDG Constant speed drive on Low oilpressure orhigh oil temperature Engine is offor IDG has disconnected Invalid data _ APU _ _ Engine /APU off Invalid data Engine /APU running and ready to load BUS 1 Bus powered (generatorline contactor1) Bus notpowered _ Invalid data BUS 2 Bus powered (generatorline contactor2) Bus notpowered _ Invalid data ESS BUS Bus powered Bus inoperative (essentialbus fail) _ Invalid data SERV BUS Bus powered Bus inoperative (AC service bus fail) _ Invalid data UTIL BUS 1 Bus powered _ Bus notpowered (shed) Invalid data UTIL BUS 2 Bus powered _ Bus notpowered (shed) Invalid data AC Electrical System Synoptic Page
DisplayedwhenADG voltageis more than10 volts andfrequency is more than300Hz. EICAS DIGITAL READOUT GREEN WHITE AMBER DASHES
AC Electrical System REV 56, Jan 31/03
WhenAPUpower is availableandtheAPU SERV BUS switchlight onthe forwardF/A panelhas been selected. |