As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PITCH TRIM MAIN INOP WARNING MESSAGE, RETURNED TO DFW. REMOVED AND REPLACED HORIZONTAL STABILIZER CONTROL UNIT IAW EMB AMM 27-40-01. OPERATIONAL CHECKED GOOD, PERFORMED FUNCTIONAL CHECK FLIGHT WITH NO DEFECTS. RETURNED AIRCRAFT TO SERVICE.