The tasks Saturday morning mainly involved repairs to the parts of the wing. The doubler reinforcement for the aileron attach bracket was riveted in place. The curved surface made riveting a little tricky, but persistence paid off in the end. The window on the right side of the Cub folds up against the wing. Originally, the catch that held the window in place was the sort of thing you'd find on old kitchen cabinet doors. Repeated use of that catch resulted in a broken piece of one of the ribs. When I restored the plane back in the 70s that was repaired with a reinforcement and a different kind of window catch that didn't push on the rib. This time, we are removing and replacing the broken rib member and installing yet another kind of window catch that won't put stress on the rib. Work will continue on the wing and right aileron on Wednesday, September 14th at 9:30.