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Airbus banging noise

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Old 22nd Jul 2004, 18:30
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MasterBates
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Question Airbus banging noise

Every time I deadhead in an A-320, I wonder what on earth is going on in the wheel bay during taxy. There is this whining noise followed by a slam of somekind, over and over. Maybe they manage to lock somebody in the cargohold every time I travel.

MasterBates.
 
Old 22nd Jul 2004, 19:03
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http://www.pprune.org/forums/showthr...highlight=a320
This is why I do not work on the Airbus! Me and computers.....cut and paste the link for previous post regarding donkeys in the hold!!
Oh it has worked now where is my application foy MYT
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Old 22nd Jul 2004, 19:11
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During taxi the noise would originate from the "Automatic Selector Valve". This normally is only heard shortly after you move for the first time. Thereafter the valve should stay in such a position, so that GREEN supplies the brakes. Once parking brake is set the valve moves across again, thus the noise and the park brake is then supplied by YELLOW.
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Old 22nd Jul 2004, 19:12
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It's just the hydraulics powering up.
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Old 22nd Jul 2004, 22:43
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Thanks

So, the bang is for the hydraulics powering the brakes etc.
I.e. if I donīt hear the bang there will be one even greater soon when the bus rams the tail of the one in front!
Thanks lads.
MB
 
Old 23rd Jul 2004, 08:57
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I travel a lot on A300 and A330. I notice the same type of noise (especially on the A300) just after push back has been completed and before we start to move forward under our own steam. The noise is particularly loud if you sit over the wing area (I feel) and sounds like someone trying to put the plane into gear!
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Old 26th Jul 2004, 08:27
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That would have been the PTU...
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