As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOR FLIGHT 4176 THE CREW REPORTED THE NOSE WHEELS PRESENTED ERRATIC BEHAVIOR. THE AIRCRAFT WAS REMOVED FROM SERVICE. FOUND RUDDER PEDAL POTENTIOMETER STUD BROKEN. REMOVED AND REPLACED POTENTIOMETER IAW EMB 145 AMM 32-50-02. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.