Aft Fuselage ( 3 hrs )
Finished machine countersinks on longeron per Sect 10-14, plus dimpled other J-Stiffeners. Back to scuffing, cleaning w/ acetone and spraying 7220 Primer. Time consuming, but progress. New Back Rivet Bucking Bar from Cleaveland Aircraft Tools delivered today (also Static Air Kit to replace Van's "cheaper" version). Planning Saturday to rivet Aft Fuselage Bottom Skin, Bulkheads, etc with my wife's assistance.