Installing flush rivets on the wing spar - 1.5 hours

One of the items that is not outlined on the plans or manual is the need to install flush rivets in the wing spar that attaches the rib right where the tank skin is installed. it's fairly obvious when looking at it that a AN470 rivet will not work, and when looking at other builder's sites it becomes very clear what needs to be done to prevent interference with the tank skin.

I took the wing off the stand, placed it on my table and went to work with AN426 rivets.