As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOST RUDDER TRIM IN FLIGHT. RUDDER TRIM FULL DEFLECTION NL. RUDDER TRIM SWITCH WILL NOT MOVE NR. A/C CONTROLLABLE WITH RH RUDDER INPUT. DIVERTED TO BUF, SMOOTH LANDING AT 47,100LBS ***AIRCRAFT REMOVED FROM SERVICE*** R&R AILERON/RDR TRIM PANEL IAW AMM 27-12-10. OPS CHECK GOOD. SN OFF: AW0162