As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED IN CLT AN UNCOMMANDED STAB TRIM MOVEMENT DURING TAKEOFF ROLL, CREATING A TAKEOFF CONFIG WARNING. THE TAKEOFF WAS ABORTED AND AIRCRAFT RETURNED TO GATE, WITHOUT INCIDENT. MAINTENANCE INSPECTED PER AIRCRAFT MAINTENANCE MANUAL AND REMOVED AND REPLACED THE HORZ STAB TRIM CTRL UNIT. OPERATIONAL CHECKS WERE DONE PER THE AIRCRAFT MAINTENANCE MANUAL AND AIRCRAFT RELEASED FOR SERVICE.