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Thread: 744 Packs off Take Off
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Old 4th February 2009 | 09:40
  #9 (permalink)  
chestnut charlie
 
Joined: Sep 2007
Posts: 5
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From: UK
744 can use APU in the air.APU to packs takeoff is available, APU is able to supply air to one pack up to 15,000ft. APU operates to 20,000ft but unable to supply any electrical power in flight.
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