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A320 Limitations > APU > Flashcards

APU Flashcards

1
Q

After 3 consecutive APU starts attempts, how much time must the crew wait before a new attempt?

A

60 minutes

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2
Q

APU Maximum N speed…

A

107 %

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3
Q

Maximum EGT for APU start below 35,000 ft…

Maximum EGT for APU start above 35,000 ft…

A

1 090 °C

1 120 °C

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4
Q

Maximum EGT for APU running…

A

675 °C

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5
Q

APU Environmental Limit

APU operation and normal restart limit (pressure altitude)…

A

-2,000 ft to 41,000 ft

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6
Q

APU Operational Envelope

Maximum altitude in which use of bleed air is permitted…

A

25,000 ft - above Elec power only

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7
Q

APU Operational Envelope

APU Battery Restart Limit (Elec Emer Config)…

A

25,000 ft

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8
Q

APU BLEED

Maximum altitude to assist engine start…

A

20,000 ft

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9
Q

APU BLEED

Maximum altitude for air conditioning / pressurization (single pack op)…

Maximum altitude for air conditioning / pressurization (dual pack op)…

A

22,500 ft

15,000 ft

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A320 Limitations (10 decks)

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