What was found
A/C REQUIRES 4 1/2 LEFT RUDDER TRIM FOR STRAIGHT AND LEVEL FLT WITH CONTROL WHEEL AT 0 IN CRUISE AT FL 340 MACH .80. REPLACED ALL 3 RUDDER POWER CONTROL ACTUATOR PER MM 27-21-02 REPLACED RUDDER RATIO CHANGER ACTUATOR PER MM 27-21-15 REPLACED ALL AUTOPILOT SERVO AS PER MM 22-13-01 REPLACED RUDDER RATIO CHANGER MODULE PER MM 27-09-00 REPLACED LEFT AILERON LOCK OUT ACTUATOR PER MM 27-11-44, REPLACE RUDDER TRIM KNOB PER SB 76727-0134 ACCOMPLISH AILERON RIG PER MM 27-11-00 ACCOMPLISH FLAP RIG PER MM 27-51-00 ACCOMPLISH ELEVATOR RIG PER MM 27-31-00 ACCOMPLISHED RIG RUDDER SYSTEM PER MM 27-21-00.