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Hello All,
Is stress corrosion cracks in rivets unique to Ercoupes, what causes
it, can it be prevented
would it not apply to all aircraft, which comes first the crack or the
corrosion? In other words
what is it all about as related to rivets?
John
-----Original Message-----
From: John Cooper <[EMAIL PROTECTED]>
To: [email protected]
Sent: Fri, 10 Feb 2006 12:16:08 -0500
Subject: Re: [COUPERS-TECH] SB31 findings today- how it works
----[Please read http://ercoupers.com/disclaimer.htm before following
any advice in this forum.]----
At 01:15 AM 2/10/2006, [EMAIL PROTECTED] wrote:
>the corroded rivets were hidden- and ultrasonic inspection will not
tell you whether your rivets are corroded either.
I am not an expert here, but my understanding is that if there is
stress corrosion in the rivet it will show up. I know ultrasound can
detect intergranular corrosion. Also, the SB specifically mentions
problems at the base of the shop heat, IIRC, which is a lot closer to
the probe than the other end of the rivet. Anyhow, I believe that the
ultrasonic inspection can detect these areas of concern. Anyone else?
John Cooper, A&P
Skyport Services
PO Box 249
4996 Delaware Tnpk
Rensselaerville, NY 12147
518 797-3064
Fax 518 797-3865
www.skyportservices.net
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