lamyl_hhlco
Posts: 596
Joined: Tue Aug 08, 2000 8:28 am

Noise After Push Back

Sat Jan 03, 2004 11:02 am

What is this weird lousy noise that we hear after a push back?
 
air2gxs
Posts: 1443
Joined: Mon Jun 18, 2001 1:29 pm

RE: Noise After Push Back

Sat Jan 03, 2004 11:34 pm

Well, that's specific.

Can be engine start.

Can be power transfer.

Can be the tow bar being disconnected.

Can be the flaps being extended.

Can be the flight controls being tested.

 
SlamClick
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RE: Noise After Push Back

Sun Jan 04, 2004 1:15 am

Would help you get an answer if you told us what kind of airplane.
Barking dogs on an A-320 possibly?
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757lgw
Posts: 137
Joined: Wed Dec 31, 2003 9:34 pm

RE: Noise After Push Back

Sun Jan 04, 2004 4:39 am

while were on the topic whats the grinding noise after pushback on the A32s. Is that what your on about lamy?.
 
Okie
Posts: 3554
Joined: Wed Jul 16, 2003 11:30 am

RE: Noise After Push Back

Sun Jan 04, 2004 6:30 am

Probably moaning "after push back" emitting from the loo if it was a 57.
Sorry could not resist after reading the post on the Civial Aviation side.

Lots of noises to be heard before during and after pushback depending on aircraft and starting procedures at that particular airport and particular operator. We need more clues
Aux Hydraulic Pumps
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Wing devices
 
lamyl_hhlco
Posts: 596
Joined: Tue Aug 08, 2000 8:28 am

RE: Noise After Push Back

Sun Jan 04, 2004 1:40 pm

yeah specifically on a A320...right after push back there is a loud noise like when you screw something with a machine, it's abviously not the Flaps or any mecanical noise that i easy recognize... I never heared this noise on a 737 though just the A320.
 
tsufang@CI
Posts: 39
Joined: Mon Feb 18, 2002 8:38 pm

RE: Noise After Push Back

Sun Jan 04, 2004 3:50 pm

to slamclick
Would help you get an answer if you told us what kind of airplane.
Barking dogs on an A-320 possibly?

xxxxxxxxxx
that's strange sound comes from ptu when elec hyd pump on
every time when i towing with aircraft ,and i turn on the elec pump
the dog barking comes from the floor
 
L-188
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RE: Noise After Push Back

Sun Jan 04, 2004 4:05 pm

The sound of the tug jackknifing into the side of the airplane  Acting devilish
OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.
 
lamyl_hhlco
Posts: 596
Joined: Tue Aug 08, 2000 8:28 am

RE: Noise After Push Back

Sun Jan 04, 2004 5:32 pm

na i don't think it's the dog barking sound..it's something else ,right after PB and engines starting up then the guys on the ground do something or disconnecting something and it makes like an electric screwdriver noise but very loud...mmm wonder what it is??
 
L-188
Posts: 29881
Joined: Wed Jul 07, 1999 11:27 am

RE: Noise After Push Back

Sun Jan 04, 2004 5:39 pm

Turning the nosegear steering back on?

Some aircraft have a NLG pin.
Some have a pump for it that is operated from the cockpit.
OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.
 
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HAWK21M
Posts: 29867
Joined: Fri Jan 05, 2001 10:05 pm

RE: Noise After Push Back

Sun Jan 04, 2004 5:44 pm

Probably The Flap drive pump/motor,used to extend the LEDs.At times the Flaps & Slats are extended to position 1 after engine start up for Visual confirmation that they are extended from Ground staff, prior to Taxi out.[In addition to the Indication lts].
regds
regds
HAWK
I may not win often, but I damn well never lose!!! ;)
 
MD11Engineer
Posts: 13916
Joined: Sun Oct 26, 2003 5:25 am

RE: Noise After Push Back

Mon Jan 05, 2004 1:30 am

On a 737 the standby pump makesa loud rasping noise.

Jan
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Sabenaboy
Posts: 183
Joined: Tue Feb 20, 2001 5:31 pm

RE: Noise After Push Back

Mon Jan 05, 2004 6:14 am

 
lamyl_hhlco
Posts: 596
Joined: Tue Aug 08, 2000 8:28 am

RE: Noise After Push Back

Mon Jan 05, 2004 12:42 pm

That must be it ,the PTU

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