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Old 10th Apr 2011, 18:32
  #3263 (permalink)  
Mr Optimistic
 
Join Date: Jun 2009
Location: Bedford, UK
Age: 70
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From Auraflyers calculations,

  • 2:10:04-2:12:16 - cascade of faults generated but ACARS still able to be sent - 17 received.
  • (in this period, possibly 2:14:20, the cabin advisory message is generated)
  • 2:15:14: latest time for impact for followup ACARS fault message not to be received.
If the sequence started at 2:10:04 with cabin pressure advisory at 2:14:20 end of sequence 2:15:14, then from a starting altitude of 35000 and 6000 assumed at the pressure advisory, a linear calculation of height loss gives 113 fps 35000-6000, and a remarkably similar 111fps for the final 6000 feet. That would indicate a continuity in the vertical dynamics.

Incidentally, would engine power loss and switching the APU on generate an ACARS message ? Maybe loss of power and then restoration would have caused a gap in transmission.

Last edited by Mr Optimistic; 10th Apr 2011 at 18:49.
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