GoJet Auxiliary Power Unit & Communications Flashcards
What is the range where the APU starter cut-out will occur?
46% on the ground and 46-60% in flight.
What are the APU starter limits?
Three attempts in a one hour period, with a two minute waiting period between each attempt
What will the APU automatic fire protection provide in flight?
Automatic shutdown of the APU, but not automatic discharge of the fire bottle.
Where does fuel to operate the APU come from?
The left collector tank via a dedicated APU fuel pump.
Prior to APU start the minimum battery voltage should be_______________.
22 volts on both batteries
If the APU is rotating above ___% in flight or ____% on the ground the APU Electronic Control Unit will inhibit start
12/5.
The maximum altitude for starting the APU is ________. It can be operated up to _________.
37,000 feet/41,000 feet.
APU bleed air can be used in flight up to what altitude?
25,000 feet.
The APU can be used as a source of bleed air for the aircraft ice protection systems.
False
If the APU door is stuck open or its position is uncertain, what must be done?
Maintain a max airspeed of 220 knots or run the APU continuously
The APU control system ensures that priority is given to ____________.
Electrical power
APU bleed air is controlled by modulating the
APU LCV
When the Captain’s NORM/EMER switch on the ACP is set to EMER, what happens?
Connects the Captain’s headset to VHF COMM 1 and VHF NAV 1.
To make a cabin announcement on the PA system, what should you do?
Press the PA switchlight on the Interphone Control Unit after selecting the transmit switch on the ACP to the PA position
With a failure of the pilot’s RTU, how can the VHF COMM and NAV frequencies be changed?
Either use the Backup Tuning Unit, or press the RTU inhibit switchlight for the pilot RTU and use the 1/2 switch on the F/O RTU to change the frequency.
