Primed step brackets with self etching primer. After scuffing, took special care to clean, first with detergent, then acetone, and finally with paint preparation solution from Lowes. Gave each brackets 3 coats.
While waiting for primer to dry, prepared F-1201C firewall. Machine countersunk the nutplate attach holes in F-1217A Tunnel Ribs. Worked on F-1272 forward bottom skin.
