As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON SHORT FINAL APPROACH THE FLIGHT CREW REPORTED PITCH TRIM RUNAWAY TO FULL NOSE UP ATTITUDE. EMERGENCY BACKUP TRIM WAS ENGAGED & CREW REGAINED CONTROL OF THE ACFT & CIRCLED FOR A SECOND APPROACH ATTEMPT. ACFT LANDED SAFELY. DISCOVERED THE PILOT'S PITCH TRIM SPLIT SWITCH ON THE YOKE FAILED. THE SWITCH WAS REPLACED.