APU Limitations Flashcards

1
Q

Minimum Temp Start

A

-40 Degrees C

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2
Q

Max Start Altitude

A

30,000 ft.

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3
Q

Max Altitude Bleed Air Use

A

15,000 ft.

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4
Q

Max Altitude Engine Start

A

13,000 ft.

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5
Q

Recommended Delay Time Between Cranking Attempts

A

2 minutes

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6
Q

Maximum Starts/Start Attempts In One Hour

A

3

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7
Q

APU Starter Duty Cycle Max Time On/Time Off

A
  1. 30 Seconds on/No time off
  2. 30 Seconds on/20 minutes off
  3. 30 seconds on/No time off
  4. 30 seconds on/40 minutes off
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