----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----


In a message dated 2/9/2006 7:38:22 PM Eastern Standard Time, [EMAIL PROTECTED] writes:

there will only be a very nominal charge just to make it worth my time coming in to work on a saturday. I practially live there anyway...

Jan Zanutto

Fresno, CA

Jan,
 
It's a cryin' shame that you live on the wrong side of the country!!  I guess I could plan a really looooonnnngggg cross country flight to bring my plane to you. 
 
Maybe you can answer a couple of questions that I've been pondering.  The accident report talked about 20 rivets being "fractured".  A scanning electron microscope was used to examine "one of the rivet faces", and it "showed intergranular features consistent with stress corrosion cracking in aluminum alloy".  I'm assuming the rivet face that they are talking about is a fractured face?  The report then goes on to say "An ultrasonic inspection of several of the intact and fractured rivets did not indicate that any of the intact rivets were cracked".  (Emphasis added.)  My question is this:  Are they implying that the intact rivets did not have any stress corrosion cracking, or that the ultrasonic inspection just did not detect the stress corrosion cracking?  Is it possible to have stress corrosion or any other type of corrosion in a rivet and NOT have the ultrasonic inspection detect it?  What if the rivet is corroded but not cracked?  I just don't know enough about ultrasonic inspection technology to be able to make an educated guess at this.  Can you enlighten me?
 
Best Regards,     
 
Wayne DelRossi
Alon N5618F
Hours logged since restoration:  91.5 (and not looking forward to drilling rivets again!) 
==============================================================================
To leave this forum go to: http://ercoupers.com/lists.htm



Reply via email to