APU Flashcards
The APU is limited to () use only.
Ground. PTM Pg. 6-1
The () provides electrical power and pneumatic/bleed air.
APU. PTM Pg. 6-1
In the event of an APU ( ), a horn will sound, the APU will shutdown and automatically dispense Halon extinguishing agent.
Fire. PTM Pg. 6-7
The APU Fire Push switch indicator is wired directly to the ( ) Emergency Hot bus and will activate when pushed even though the aircraft batteries may be off.
Right Emergency Hot bus. PTM Pg. 6-8
The pilot must wait at least 10 seconds after depressing the APU Master switch in order to complete the system (“ ”) check before starting the APU.
BIT. PTM Pg. 6-8
After selecting the APU Bleed switch (“ ”), there will be a short delay of several seconds before the white “ON” is illuminated in the switch indicator.
ON. PTM Pg. 6-9
The ( ) Fan Fail light in the tailcone access area illuminates, the pilot may attempt to reset the light.
APU Fan. PTM Pg. 6-5
If the APU Fan Fail light in the tail cone access area is illuminated and cannot be reset, the APU canstill be used if the ramp temperature is () degrees F (38º degrees C) or less.
- PTM Pg. 6-5
During normal APU shutdown, the operator should wait ( ) seconds before turning off the APU Master switch allowing for shutdown and associated “BIT” checks. (STBY Pump Light Off)
- PTM Pg. 6-11
The APU burns approximately ( ) lbs. of fuel per hour. PTM Pg. 6-6
100 lbs. of fuel per hour. PTM Pg. 6-6
During preflight, if the ( ) APU FAIL/FAULT light is illuminated, the APU may still be used.
Blue. PTM Pg. 6-13
During preflight, if the ( ) ADD OIL light is illuminated, the APU may still be used.
APU ADD OIL light. PTM Pg. 6-13
During preflight, if the APU OIL LOW light is illuminated, the APU can still be used, but the operator has () hours of operation until oil must be added to the APU gearbox.
- PTM Pg. 6-13
If the APU does an un-commanded shut down, a () inspection must be completed prior to takeoff.
Visual. AFM Pg. 4-12
If an amber APU FAIL CAS message is present and cannot be cleared, ( ) take off.
Do not. AFM Pg. 4-12
The APU uses fuel from the ( ) wing tank.
Right wing tank. PTM Pg. 6-6
The ( ) standby pump will automatically activate and remain on while the APU is running.
Right. PTM Pg. 6-8
The waiting period between APU start attempts is () minute after the first start, () minutes after the second start and () minutes after the third start.
1 / 2 / 15. AFM Pg. 1-24
Maximum Continuous amperage on the APU generator is () amps.
300 amps. PTM Pg. 6-11
Oils conforming to specification ( ) are approved for APU use. Refer to Addendum II of the AFM.
Mil-L-7808 & Mil-L-23699
Approved Fuels for the Aircraft Engines are also approved for ( ).
APU use
Operation of the APU during ( ) & ( ) is prohibited.
Gravity Refeuling and De-Icing
The APU is up authorized for use up to field pressure altitudes of ( ) feet.
10,000’
