Using pneumatic squeezer, riveted top rib R-403 to spar using AN470-AD4 rivets. Riveted top 3 and bottom 3 rivets on rudder horn, spacer, R-404 rib, spar, and R-606PP reinforcement plate using pneumatic squeezer. Using rivet gun and bar, attempted to rivet 2 rivets on center row outside. Put smiles on both rivet heads, drilled rivets out. Reriveted, same result. Need to drill out some rivets. Placed dab of Permatex UltraBlue silicone RTV compound inside trailing edge of rudder skin at end of each pair of stiffeners. Placed boards on each side of trailing edge and secured with 7 C-clamps. Slowly tightened each clamp to put final bend in trailing edge. During bending, discovered that a stiffener was butting up against a rivet head. Filed part of stiffener using a circular file. Visitor-Buck Buckland (EAA Chapter Member)
