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1. 11:04 PM - Re: History of 500A wing spar problems. (W J R HAMILTON)
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| Subject: | Re: History of 500A wing spar problems. |
Jim,
There are others far more knowledgeable than me on this subject, but
if the have a look on the Australian Civil Aviation Safety Authority
(CASA) web site (www.casa.gov.au) you will find a whole history of
the wing spar problems.
The guts if the problem was that spar extrusions were cold bent and
not stress relieved.
Australia published (some quite lunatic) hard spar lives for almost
all GA aircraft, for a 500A in normal serviceable condition, with the
AD required spar strap, the life is unlimited.
In some ( not AC) aircraft, it can be as low as 8000 hours.
Regards,
Bill Hamilton
At 11:04 PM 18/08/2006, you wrote:
>
>I was wondering if anyone could help me with current or historic
>information on the Aero commander 500A in reference to problems with
>the wing spar.
>I have N 800AC which I have been working to get airworthy for the
>last few years and was down to one last problem. I had a fuel leak
>which you could smell in the aft cabin. When they pulled the center
>fuel bladder out to repair or replace they found the wing spar in my
>plane to be 50% deteriorated.
>
>Are there any ADs or service advisories which would have covered
>this problem in the past?
>Where can I get replacement parts?
>
>Thanks,
>Jim
>
>
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