Systems Flashcards
What does dc service switch do
External nav lights
Lav lights
Dome lights
Passenger cabin lights
What does DC service switch do
Connects DC Service Bus to APU Battery direct bus
Battery specs
Main Battery 24 volt 17 ampere hour
APU Battery 24 volt 43 ampere hour
What does DC Emergency bus power continuously
L&R engine and APU fire bottle squibs
L&R engine hydraulic SOVs
L&R engine and APU fuel SOVs
Emergency lights
When will an IDG indicate a “Fault”
High oil temperature or low oil pressure
When will an IDG automatically disconnect
Over temp or over torque condition
When does generator control unit Trip off a generator
Over / under voltage
Over / under frequency
Generator or Bus over current
Engine starter cut out should happen at
50% N2
Takeoff with more than 500 lb of fuel in center take unless more than
4400 lb in each wing tank
Max fuel imbalance for take off
300 lb
Max fuel imbalance all stages of flight
800 lb
What does auto fuel cross flow do
200 pound imbalance or better transfers to low wing until 50 lb higher
What cabin altitude will the cabin alt caution msg appear
8,500’
When would cabin alt warn appear
10,000’
At what altitude will cpam deploy O2 mask
14,000’
