Brief Description: Drilling Left Upper Rear Wing Skin
Flipped wing up to have a look at the inside. All looks good. Set it back down and drilled all holes out for the A5 rivets except for the leading edge and aileron. Filled all those holes with black clecos, removed the copper clecoes and drilled them out also.
Tested the rigidity and decided to finish the left wing before starting the right one. Less lifting and storing.