As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REPORTED CO-PILOT`S ROLL TRIM WOULD NOT TRIM WHEN MOVED TO THE RT. MAINTENANCE FOUND THE ROLL TRIM WIRING SEVERED AT THE YOKE. THE WIRING HAD CONTACTED THE PRIMARY FLIGHT DISPLAY. THE WIRING WAS REPAIRED AND THE ACFT WAS RETURNED TO SERVICE. (S)