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location of jack point
I just pulled up a picture of my 1966 337A jack point. The dark circle is where the screw and washer is inserted into the jack point, which is along the rivet line for the wing spar. Looking at your picture is a little different, as the rivet heads are raised (AN470) and not flush like mine (AN426). This could be due to a previous repair, or a different model. Either way, it looks to me that the jack point on yours is in the incorrect position, and aft of the spar. The double row of rivets running span wise is likely the spar location. Your jack pad should not be behind the skin lap, but in front of the skin lap (for reference).
Was there any repairs made in that area, and the hole for the jack pad incorrectly located?
Jeff
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