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Thread: Aer Lingus flight EI110 makes emergency landing in JFK
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Old 30th Sep 2015, 03:54
  #16 (permalink)  
misd-agin
 
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RAT's and PTU's are backup sources of power for hydraulics. If that's what the poster meant that's fine. If he believes there's backup systems for the loss of hydraulics he's in for a big surprise.
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