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A320 Limitations > APU > Flashcards

Flashcards in APU Deck (14)
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1
Q

After 3 consecutive APU start attempts, the flight crew must wait how long until performing a new start ?

A

1 hour

2
Q

Maximum N (rotor) Speed ?

A

107%

3
Q

Maximum EGT for APU Start (below 35,000ft) ?

A

1,090°C

4
Q

Maximum EGT for APU Start (above 35,000ft) ?

A

1,120°C

5
Q

Maximum EGT for APU Running ?

A

675°C

6
Q

APU Start permitted with following restrictions during REFUELLING/ DEFUELLING ?

A
  • if APU fails to Start following an Automatic Shutdown - DO NOT START APU !
  • if a Fuel Spill occurs - Perform a NORMAL APU Shutdown
7
Q

APU Ground Operation between which Altitudes ?

A

-1,000ft & 14,500ft

8
Q

Maximum Altitude for APU Start on Batteries ONLY ?

A

25,000ft

9
Q

Maximum APU Operation & Normal Start Altitude ?

A

41,000 ft

10
Q

ELEC PWR ONLY from APU Altitude .. ?

A

Above 25,000ft

11
Q

APU Supplies BLEED & ELEC PWR below which Altitude ?

A

Below 25,000ft

12
Q

Maximum Altitude to Assist Engine Start via APU BLEED ?

A

20,000ft

13
Q

Maximum Altitude for AC & Pressurisation (Single PACK Operation) ?

A

22,500ft

14
Q

Maximum Altitude for AC & Pressurisation On (Dual PACK Operation) ?

A

15,000ft