Worked on seat back support plates, final drilled all holes, installed spacers and match drilled. Final drilled holes in balkhead caps. Final drilled nutplate holes in aft skins for inspection covers. Match drilled rudder stop holes. Set up and marked location and drilled two holes for tail spring mount. Trimed bottom aft skin for tail spring clearance using drawing 73 template. Drilled 3/4 hole in aft bottom skin.
