-Trimmed the end of the main longeron flush with aft skin -Installed the rudder -Marked and trimmed the rudder stops to allow a 1" minimum between the elevators and rudder at maximum deflection. -Deburred and countersunk the rivet holes on the rudder stops -Cleaned and primed the rudder stops and the patch of skin under the rudder stops. -Riveted the rudder stops to the fuselage