As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APPROXIMATELY 20 MINUTES INTO THE FLIGHT, COPILOT NOTICED THE AILERON TRIM RUN AWAY. HELD THE OPPOSITE TRIM DIRECTION AND NOTICED THE ROLL CIRCUIT BREAKER TRIPPED. AFTER VERIFYING ALL CHECKLISTS COMPLETED, THE CAPTAIN DIVERTED WITH A VISUAL APPROACH. MECHANIC PERFORMED TESTING AND EXAMINATION OF THE SYSTEM WIRING AND DETERMINED THE PROBLEM WAS WITH THE TRIM CONTROL BOX.