As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXPERIENCED FULL LEFT RUDDER DEFLECTION DURING DESCENT. RUDDER TRIM FOUND TO BE ALMOST FULL NL POSITION. RESET RUDDER TRIM TO CENTER AND LANDED WITH NO FURTHER ISSUES. (FLT#3290) CLOSED REMOVED AND REPLACED RUDDER TRIM/AILERON TRIM PANEL. PERFORMED OP CHECK OF RUDDER TRIM SYSTEM RUDDER TRIM OP CHECKS GOOD IAW AMM.