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Old 02-08-2009 | 06:00 PM
  #42  
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LeeFXDWG
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From: B737 CAPT IAH
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Originally Posted by HermannGraf
He started APU immediately so he had electrical configuration for Normal Law on flight controll and..........I am not sure but I believe you have to have total electrical failure for the anti stall system to fail...
I have a very good friend in the training department at an Airline that operates 320s so I will ask about that........
We will have to wait for more info as I said. Again, assuming the worst case and the motors failed in rapid fashion as it sounds on the ATC tapes, the APU is prevented from coupling for 45 seconds after a dual engine failure to ensure the RAT generator couples properly. I don't have the timeline on this event so can't say what happened. Just stating in worst case they were ditching in Alternate Law and doing their first slats only approach to a ditching.

Lee

PS Assuming the APU came online at some point, they would have to reset the ELAC SEC AND FACs to get beck to Normal Law. Last thing I would be doing as I watched the Hudson get closer...
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