Hey guys. On the project I purchased, one of the dimples appears to have been done a little to hard and caused a small crack, which the original builder tried to drill out. Of course it is one of the top wing skins, and of course it's already mostly riveted in place, and of course this particular rivet dimple is to attach the skin to the rear spar. I would like to avoid removing the entire skin (lots of rivets to drill out), so I've been reading Aviation Maintenance Technician Handbook—Airframe from the FAA website which shows methods for repair. Two methods I'm considering are adding a doubler, vs cutting out the damaged dimple and patching with a doubler. To complicate things, this dimple is also right next to a rib. I miss the days when I could email a DAR at EAA and they could tell me what they would like to see on inspection. Any advise would be appreciated.
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Wing skin dimple damage
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Originally posted by jaredyates View PostI've found Bob to be great at answering questions like these. You might to catch him on the phone.
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I would still the hole out just large enough to eliminate the cracks, deburr it and then make a small rectangular doubler out of .025 aluminum and rivet it over the hole. I doubt anyone will ever notice it. If they do just tell them you are conducting a top secret experiment inside the wing.
Eric Newton - Long Beach, MS
Bearhawk Tailwheels LLC
Bearhawk Manuals
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Originally posted by Enewton57 View PostI would still the hole out just large enough to eliminate the cracks, deburr it and then make a small rectangular doubler out of .025 aluminum and rivet it over the hole. I doubt anyone will ever notice it. If they do just tell them you are conducting a top secret experiment inside the wing.
Eric Newton - Long Beach, MS
Bearhawk Tailwheels LLC
Bearhawk Manuals
http://mybearhawk.com
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Yes on both counts
Eric Newton - Long Beach, MS
Bearhawk Tailwheels LLC
Bearhawk Manuals
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