Brief Description: Center Section - Rivet seat ribs to main wing spar
I've made another discovery. Putting the shop head on the flange side results in a raised flange. Look at image 1. The center rivet has a gap between the flange and spar web. This gap was not there before I bucked it. The gap is a result of bucking. Drilled it out, turned it around and see the results in image 2. Image 3 has all 5 rivets in the wrong direction. Drilled them all out and the result is no gap.
