FlyerTalk Forums - View Single Post - Flapping bit on 77W wing during descent
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Old Jul 23, 2012 | 11:53 am
  #3  
briguychau
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It's a rubber seal between the flaps and the flaperon/aileron, to (I think) make the wing more streamlined and fill out the gaps. It's not really a big deal if a little bit of it is loose like that.
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