As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DISCREPANCY: RUDDER TRIM SYSTEM MADE 4 UNCOMMANDED TRIM INPUTS BETWEEN 1.3 AND 1.9 UNITS RIGHT. RUDDER TRIM RETURNED TO NEUTRAL WITHIN 1 MINUTE OF EACH EVENT. CORRECTIVE ACTION: AS PER TSM 22-62-00-810-809-A STEP 4A CONTINUITY CHECK PERFORMED. REMOVED AND REPLACED RELAY 7CC1. MP 3643582 REF LP 285342/1 FOR RUDDER ACTUATOR REPLACEMENT.//END//