Noise when taxying
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Join Date: Oct 2007
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Noise when taxying
Hi all...on most flights, whilst taxying, i notice a sound like a winding sort of sound...like a car wheelnut is being turned by an airgun....intermittent sound, lasts about 10 seconds or so....was wondering what it could be? Happened last on BA A319
cheers
cheers
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Power Transfer Unit - PTU. Old fave on this forum, if you do a search it'll turn up a better explanation 
Only happens on Airbus aircraft AFAIK, or at least most commonly heard on the 319.
Only happens on Airbus aircraft AFAIK, or at least most commonly heard on the 319.
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You hear it more on taxiing now because of the single-engine taxi procedures commonly in force with a lot of narrowbody operators (BA included). Before you'd hear the bark during pushback when both engines were started.
Champ
Champ
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Doesn't sound at all like a winding noise or an air wrench tuning a lug nut.
Narrow-body Boeing airliners produce an occasional winding noise heard in the cabin while parked.
Narrow-body Boeing airliners produce an occasional winding noise heard in the cabin while parked.
Opening cargo doors whilst taxiing?
Narrow-body Boeing airliners produce an occasional winding noise heard in the cabin while parked.
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during taxi, more likely the flaps being deployed.
https://www.youtube.com/watch?v=GVu91rTFSsc
(flaps start at 1:20. unless you want to listen to the nice french lady talking.)
https://www.youtube.com/watch?v=GVu91rTFSsc
(flaps start at 1:20. unless you want to listen to the nice french lady talking.)
