Routed rudder cables into fuselage from aft forward. Began work on ground adjustable rudder pedals. Drilled out specified round head rivets and countersunk holes for CS4-4 flush blind rivets. Created shim system that would allow clearance of rivet puller around angle flange and allow blind rivets to lay flat. Rivets pulled sucessfully. Measured, marked and initial-drilled #40 holes along F-8108-L/R attach angles. Deburred holes and smoothed corners.