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Can't add much except to say that this is seriously deranged. The central axis of the jack pad should be very nearly vertical when threaded into the spar. This condition, at least as it appears in the photo, should be impossible if assembled correctly. Is the bottom skin actually as buckled as it appears? What does the starboard side look like with its jack pad in place? Threading a longer rod into the wing would dramatically illustrate any misalignment. Not only would I not jack the aircraft until I understood the problem, I wouldn't fly it either.
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