As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RDU - SHORTLY FOLLOWING TAKEOFF, THE CREW REPORTED AN UNCOMMANDED FULL RIGHT RUDDER INPUT LASTING 2 TO 3 SECONDS. THIS INPUT COULD NOT BE OVERRIDDEN. THE CREW ELECTED AN AIR TURN BACK WHICH WAS FOLLOWED BY AN UNEVENTFUL LANDING. AIRCRAFT IS ON THE GROUND FOR REPAIRS. (M)