Ingo Weise

Active Member
Hi,

I've finished the inventory of my wing kit and found some strange burning marks on the FL-803PP-L and FL-803PP-R flap spars, that look like they are from welding arcs. In one place a mark has been sanded out.
Some of the marks are deep enough, that I can catch my fingernail on the edge.
Have you ever seen this?

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Thank You
 
I saw similar artifacts on my RV-8 wing ribs, also assumed it was laser cutting spatter. Seemed to scotchbrite out.