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Europa-List: Re: LG frame cracks

Subject: Europa-List: Re: LG frame cracks
From: tennant <barrington.tennant@gmail.com>
Date: Tue, 13 Nov 2018 04:03:28

Hi Jim & Heather,

Good spotting!
This looks like a typical SAE4130 weld heat affected zone crack. We see it in 
motorsport
constructions regularly. It looks like the parts were not suitably tempered
after welding. Although prevalent in the US, this grade is nearly never
used in European aircraft construction because of this problem.
Luckily I have my ship in the garage at the moment and I will be checking it 
carefully.


That could have caused an exciting landing!!

Congratulations

Barry

--------
Barry Tennant
D-EHBT
At EDLM  -  Germany


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=484980#484980



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