Warning Lights Flashcards
CABIN DUCT HOT or FLT COMPT DUCT HOT
Supply duct temp > 88 degrees. Overriding full cold signal sent to relevant packs and light extinguishes when temp <82 degrees.
CABIN PACK HOT or FLT COMPT PACK HOT
Temp >207, shuts off both bleed air supply systems (or the single system in the 100).
1/2 BLEED HOT
Temp >290 degrees, in the related bleed air duct, downstream of the PRSOV. (Pressure regulation shutoff valve).
CABIN PRESS
Cabin pressure exceeding 10,000 ft. (RED WARNING)
L/R TRU
Applicable TRU off or failed.
BAG DOOR
Baggage door not properly closed. Secure door if on ground, if in flight, decomp procedure. (RED WARNING)
SERV DOOR
Service door not properly closed. Secure door if on ground, if in flight, decomp procedure. (RED WARNING)
TOUCHED RUNWAY
Whoops…do not pressurise…return to land…receive pineapple…(RED WARNING)
APU
ESU has detected a fault and shutdown the APU. This will happen if it is left on for takeoff.
PRI INV
Inoperative, select AUX Inverter to L.
SEC INV
Inoperative, select AUX Inverter to R.
AUX INV
Inoperative. Switch off.
L/R 26 AC
L/R transformer inoperative.
L/R AC BUS
Bus not powered.
DC BUS
Comes on if BBPU inhibits buses from tying. After 7 s delay, isolates and shuts down the affected DC gen and removes affected battery.
L/R TRU
Inoperative. These can’t be turned on or off, so check CB.
MAIN/AUX BATTERY
Not turned on.
1/2 DC GEN
Offline or failed. Main DC buses auto tie.
1/2 AC GEN
Offline or failed. Var freq buses auto tie.
MAIN/AUX BATT HOT
Battery over 65 degrees. Switch off.
L/R TRU HOT
Overtemping, must be shutoff by pulling applicable CB.
1/2 DC GEN HOT
DC gen windings overheating. Shut off applicable unit.