CaptOveur
Topic Author
Posts: 6064
Joined: Thu May 06, 2004 3:13 am

Another DC-9 Noise Question

Tue Feb 27, 2007 4:19 pm

A few months ago I was on a NW DC-9-30 from SAT-MEM. Anyway, I was in first class and sometime before pushback there was this noise like an electric drill that sounded like it was coming from the floor... Any idea what it was?
Things were better when it was two guys in a dorm room.
 
atlamt
Posts: 245
Joined: Thu Sep 13, 2001 12:15 am

RE: Another DC-9 Noise Question

Tue Feb 27, 2007 5:37 pm

Electric hydraulic pump. Located in the fwd part of the right main wheel well.
Fwd to MCO and Placard
 
MX757
Posts: 495
Joined: Wed Aug 17, 2005 5:38 pm

RE: Another DC-9 Noise Question

Wed Feb 28, 2007 6:32 am

Quoting CaptOveur (Thread starter):
A few months ago I was on a NW DC-9-30 from SAT-MEM. Anyway, I was in first class and sometime before pushback there was this noise like an electric drill that sounded like it was coming from the floor... Any idea what it was?

Did you hear it before engine start? And did it go away after the engines were running?
Is it broke...? Yeah I'll fix it.
 
CaptOveur
Topic Author
Posts: 6064
Joined: Thu May 06, 2004 3:13 am

RE: Another DC-9 Noise Question

Wed Feb 28, 2007 3:02 pm

Quoting MX757 (Reply 2):
Did you hear it before engine start? And did it go away after the engines were running?

Yes.. it was around the time the doors on the baggage pits were closing.

Ok so now I am going to ask the really stupid question.. If it is an electric hydraulic pump why do I only hear it for a few seconds. Is it just pressurizing the system or something?
Things were better when it was two guys in a dorm room.

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