Brief Description: 0 Rivetted Top Skin 5 rear inner rivets
16-3: Step 3: These were the 5 difficult to reach rivets on both wings, top skin, inboard side just above the rear wing spar stiffener. I ground the sharp end of the bucking bar shown below and polished it some to prevent maring the spar stifener. Added duct tape to help protect the surfaces. Results were adequate, although not as pretty as adjacent rivets but structurally sound.This finishes up this section 16 on the wings. Work time includes the time to modify the bucking bar.