What was found
WHILE DESCENDING THROUGH 15,000 FT AT 320 KIAS, THE RUDDER TRIM WENT INTO FULL DEFLECTION. REPLACED THE RUDDER TRIM SWITCH WITH UPGRADED PART.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE DESCENDING THROUGH 15,000 FT AT 320 KIAS, THE RUDDER TRIM WENT INTO FULL DEFLECTION. REPLACED THE RUDDER TRIM SWITCH WITH UPGRADED PART.