As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 2849 THE CREW REPORTED THAT ON TAKEOFF THE FIRST OFFICER TRIED TO TRIM AND RECEIVED PTRIM MAIN INOP. FOLLOWING THE CHECKLISTS THE CREW DECLARED AN EMERGENCY AND RETURNED TO DFW. THE AIRCRAFT LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE HORIZONTAL STABILIZER ACTUATOR IAW EMB AMM 27-40-02. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.