"Worked on fitting forward and aft ribs numbers 10 11 and 12 on the right main spar. Aligned the spars to fit as shown in Detail ""K"" of drawing W14. Clamped into place forward and aft rib individually and enlarged a couple of holes (#40) to match the spar holes. Then clecoed those holes and drilled remaining holes to match the spar holes (#40). Then clecoed and clamped both ribs in position and up drilled the holes to #30. Removed the clecos and check to be sure the holes were acceptable in shape and size."


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