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Oil canning just forward of the tail tie down.

 
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GrummanDude



Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA

PostPosted: Thu May 18, 2006 10:44 pm    Post subject: Oil canning just forward of the tail tie down. Reply with quote

I leaned on my horizontal a few days ago and heard a buckling sound. Not
the sound I would want to hear. Lifing up on the horizontal, I heard it again.
As it turns out, the tail tie-down ring had been 'struck' at some point
before I bought the plane. I have been ignoring the tie down ring. This was
the first time I'd noticed the oil-canning.

In the investigation that I expected would turn out to be damage in the
vertical supports, I noticed a 'u' shaped channel doubler on the left side,
vertically, halfway between the vertical support (that is the source of the service
bulletin) and the forward bulkhead that was designed to be the forward support
for the original Traveler.

Anyone seen or heard of this?

Gary


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flyv35b(at)ashcreekwirele
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PostPosted: Fri May 19, 2006 5:00 am    Post subject: Oil canning just forward of the tail tie down. Reply with quote

I don't ever recall seeing this on any planes I have look at.

I do have a customer who has a Tiger that makes a "popping" sound, possibly
oil canning when moving the end of the horizontal fore and aft. I have not
been able to determine what the cause is. I think it may be coming from
inside the stabilizer itself where the spar attaches.

Cliff
---


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GrummanDude



Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA

PostPosted: Fri May 19, 2006 10:53 pm    Post subject: Oil canning just forward of the tail tie down. Reply with quote

In a message dated 5/19/06 6:01:19 AM, flyv35b(at)ashcreekwireless.com writes:
Quote:
I do have a customer who has a Tiger that makes a "popping" sound, possibl
y

Quote:
oil canning when moving the end of the horizontal fore and aft.=A0 I have
not

Quote:
been able to determine what the cause is.=A0 I think it may be coming from
inside the stabilizer itself where the spar attaches.


That's what I thought. lay on your back and put a like amount of fingertip

pressure on the area just forward of the tail tie down. Have someone move
the horizontal around until it makes a noise. I think you'll feel the skin
oil
can.

Gary


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