777 Lights And Switches Flashcards
(15 cards)
Battery off light
Battery bus not powered and EICAS advisory message (ELEC BATTERY OFF) is displayed
APU GEN OFF (amber)
(With APU running) APU generator breaker open because of a fault or APU GENERATOR switch selected OFF
IFE/PASS seats power switch
Powers IFE, passenger seat, ground maneuver camera, and flight deck entry video surveillance systems
L/R BUS TIE ISLN light (amber)
Switch is OFF or is in AUTO. And a fault has occurred
PRIMARY/SECONDARY EXT PWR
Connects external power to the bus(ses)
L/R GEN CTRL DRIVE light (amber)
Without generator OFF light - indicates low oil pressure
With generator OFF light - indicates high oil temperature
When pressed it dissconects IDG drive from engine
(Cannot be reconnected by flight crew)
L/R BACKUP GEN OFF light (amber)
Switch is off or
A fault has occured or
Engine is shutdown or
Engine fire switch is out
RAM AIR TURBINE PRESS (green)
RAT is deployed and center primary flight control hydraulic pressure is greater than 1500 psi
RAM AIR TURBINE UNLKD (amber)
RAT is not in the stowed position
L/R ENG driven hydraulic pump FAULT light (amber)
Low primary pump pressure
or
excessive pump fluid temperature
DEMAND pump FAULT light (amber)
-low demand pump output pressure
-excessive demand pump fluid temperature
-demand pump selected OFF
Fuel pump Press light (amber)
Fuel pump output pressure low
(Center tank) light is inhibited when switch is off
Fuel jettison arm ARMED (white)
Arms jettison system initializes fuel to remain at MLW fuel quantity
ADIRU ON BAT light (amber)
ADIRU is selected on and ground/primary power was removed or fails
Primary flight computers DISC light (amber)
Indicates PFCs are disconnected (either manually or automatically)
