Picture 1: Back riveting the rudder. Picture 2: Working on riveting flange bearings to the flaperon mixer bellcrank. Picture 3: Installing brake lines. Picture 4: Attaching the brake reservoir to the firewall. Working on riveting flange bearings to the flaperon mixer bellcrank. Picture 5: Adjusting the countersink cage for the roll bar assembly. Picture 6: Riveting F-12116 hinges to upper firewall assembly (Front) Attaching vent door handles (Middle) Riveting top edge of and match-drilling inside of rollbar assembly (Back). Picture 7: Drilling out a bad rivet. Picture 8: Dimpling the rudder stiffner.