What was found
DURING FIRST FLIGHT OF THE DAY AUTOPILOT TEST, RECEIVED -YAW DIS- ON FIRST OFFICER'S FLIGHT CONTROL PANEL AND ASSOCIATED -YAW DIS- ON AP CONTROL PANEL. ALSO -R- ON AUTOPILOT CONTROL PANEL. UPON INSPECTION FOUND RUDDER TRIM ACTUATOR CABLE WIRE FRAYED AND BINDING. REMOVED AND REPLACED CABLE WITH SERVICEABLE RUDDER TRIM ACTUATOR CABLE AND TENSIONED TRIM CABLES IAW EMB120 MM 27-00-01. OPS CHECK GOOD. AFTER REPLACEMENT OF RUDDER TRIM ACTUATOR, OPS CHECK OF AUTOPILOT GOOD.