I fully inspected the left and right forward angles and confirmed that all had multiple unnecessary holes drilled in them for rivets but there apparently had been an issue in assembly and the holes were not used. The extra holes were not limited to the Forward Angles but also the 'L' pieces which rivet direct to the skin. I shose to remove all of the forward angles and the 'L' pieces and replace.

Using 6061T6 t=0.025 I formed the new forward angles (75F12-7) for use in the change.