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Final drilled the top main spar holes for the ribs
There is no mention of these holes in the written instructions, only an indication of what rivet to use on the drawings. These holes are under the tank skin and are riveted from the main spar directly to the rib. I put a cleco in the bottom hole of the spar to line the rib up so I could final drill the top hole. Tomorrow I will countersink all the small spar holes.
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