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Rookie question regarding spar

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12 Sep 2023 10:34 #1 by John Jones
Replied by John Jones on topic Rookie question regarding spar
I would also check the tie down ring for the tail at frame J, those wrinkles could be from a "tug" while the tail was secured.

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10 Sep 2023 18:58 - 10 Sep 2023 19:13 #2 by Warren Hampton
Replied by Warren Hampton on topic Rookie question regarding spar
the stress of a sudden stop could be tail parts forcing a twist. However to me the pics look more like pressure push on the lower right. Dry ice may pull some of that out. It would take some careful measuring from the trailing edge of the walk box to the front of the rudder to find twisting.
Last edit: 10 Sep 2023 19:13 by Warren Hampton. Reason: Adding more

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30 Jun 2023 12:58 #3 by Larry Snyder
Replied by Larry Snyder on topic Rookie question regarding spar
You can have an A&P look inside the fuselage to make sure the bulkheads are ok. But even if that part of the fuselage is ok I’d want to know what incident caused them.

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30 Jun 2023 12:27 #4 by Super User
Replied by Super User on topic Rookie question regarding spar
The center spar can be visually inspected. However, the area in your pictures (didn't see any wrinkles in those) is the empennage. Wrinkles there could represent having hit the tail on something (flying or not) causing bending in the braces that help stiffen the aluminum of the empennage. That can also be inspected visually from the inside to determine if one (or more?) of the braces are bent.

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30 Jun 2023 12:22 #5 by Larry Snyder
Replied by Larry Snyder on topic Rookie question regarding spar
Weird location for wrinkles. They would worry me. They’re pretty far from the center spar. I’d sure want to know how they got there!

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30 Jun 2023 12:10 - 30 Jun 2023 12:34 #6 by Wouter van Tiel
Rookie question regarding spar was created by Wouter van Tiel
Still looking at buying this Ercoupe, and it has some wrinkles in the fuselage. The spar is allegedly in solid condition as verified during the last annual, seller's representative does not know what caused the wrinkles in the skin. My question is how can I tell if the spar is in good shape? What does that look like? Two pics of the fuselage wrinkles in case that brings up another issue.

Thanks in advance!

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Last edit: 30 Jun 2023 12:34 by Wouter van Tiel.

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