As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - THE CREW REPORTED A PITCH TRIM RUNAWAY ON TAKEOFF, FOLLOWED BY A PITCH TRIM INOP MESSAGE AND BOTH PITCH TRIM CIRCUIT BREAKERS POPPED. THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE AIRCRAFT AND REMOVED AND REPLACED THE CAPTAINS YOKE PITCH TRIM SWITCH, AND THE CAPTAINS TRIM DISCONNECT SWITCH. OPERATIONALLY TESTED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.