Drilled aileron brace to wing and spar. Deburred all holes; polished most edges on ScotchBrite wheel, sanded all others with 600-grit paper. Rolled edges. Dimpled edge of brace that will attach to skin. Cleaned and primed brace. Primed inside of skin around brace attach holes. Began riveting aileron brace to spar. Clecoed flap brace to spar.
Rolling the edges of the aileron brace so it fits tightly to the spar after being riveted.
Aileron brace riveted to spar.
Strange -- the prepunched hole in the rib did not match where the flap brace hole actually is.
