As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED THAT ON PREFLIGHT CHECKS THAT THE RUDDER BIAS CONTROLS FELT VERY WEAK ON BOTH SIDES. THE MAINTENANCE VENDOR TROUBLESHOT AND DETERMINED THAT THE RUDDER BIAS ACTUATOR WAS DEFECTIVE. THE RUDDER BIAS ACTUATOR WAS REMOVED AND REPLACED WITH AN OVERHAULED UNIT. OPERATIONAL CHECKS WERE SATISFACTORY. THE AIRCRAFT WAS RETURNED TO SERVICE.