As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB-OUT FROM MIA PASSING FL 33, FELT ABRUPT UNCOMMANDED YAW OF AIRCRAFT. LOWER RUDDER INDICES SHOWED DISPLACEMENT 5 DEGREES RIGHT OF CENTER. UPPER RUDDER INDICES SHOWED CENTERED. TURNED OFF LOWER YAW DAMPER, CONDITION STOPPED. INITIATED RETURN TO MIA. (M)