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Center section AD inspection

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15 Apr 2021 02:37 #1 by Bruce Bennett
Replied by Bruce Bennett on topic Center section AD inspection
My A&P was quite knowledgeable about Ercoupes. We always pulled the wings
on my 415C because he said "it was quick, easy, and gave great access".

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13 Apr 2021 19:34 #2 by Larry Snyder
Replied by Larry Snyder on topic Center section AD inspection
If you cut holes be very very careful. Nick a spar cap and your center section is toast.

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13 Apr 2021 18:23 #3 by Morris Pearson
Replied by Morris Pearson on topic Center section AD inspection
Wow that looks pretty bad. We just recovered the wings las winter so I know they are in good shape. I looked into the center section while the wings were off and they looked OK but next year an IA will have to sprinkle holy water on it. I am leaning towards installing the inspection ports bur have not yet decided which way to go.

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13 Apr 2021 09:11 #4 by Matt Gunsch
Replied by Matt Gunsch on topic Center section AD inspection
Don't limit your inspection to just the center section spar. I recently did a annual on a F-1 and found exfoliation corrosion of the left wing upper spar cap. It would have been very hard to see without pulling the wing.

A&P, IA, PPSEL
30+ years GA and Warbird Maint
Check out the Ercoupe Discussion group on facebook
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12 Apr 2021 21:15 #5 by Larry Snyder
Replied by Larry Snyder on topic Center section AD inspection
There are three methods: inspection holes; wings off; and borescope. Mechanics have usd the borescope 5 times on my plane. They send the scope up the gap between the wing and the center section. I think once we did the wings off method. Never did holes.

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12 Apr 2021 21:10 #6 by Ronald Raty
Replied by Ronald Raty on topic Center section AD inspection
I used the inspection ports. I have had two IA's inspect the plane, they just glance up through the hole with a mirror and look for corrosion and when seeing none, they move on. They didn't use any scopes.

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