As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 2749 THE CREW REPORTED THAT DURING THE CLIMBOUT RECEIVED A MAIN PITCH TRIM FAIL MESSAGE ON EICAS. ALL OTHER SYSTEMS WORKED NORMAL. THE CREW DECLARED AN EMERGENCY AND RETURNED TO DFW. THE AIRCRAFT LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED HORIZONTAL CONTROL UNIT IAW EMB 145 AMM27-40-01. THE OPERATIONAL CHECK WAS GOOD IAW 27-40-00. THE AIRCRAFT WAS RETURNED TO SERVICE.