As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 2897 THE CREW REPORTED THAT DURING THE CLIMB, RECEIVED A MAIN PITCH TRIM INOPERABLE MESSAGE ON ECAS. THE CAPTAIN ELECTED TO RETURN TO DFW. THE AIRCRAFT LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE HORIZONTAL STABILIZER CONTROL UNIT AND FIRST OFFICER’S PITCH TRIM SWITCH. THE AIRCRAFT WAS RETURNED TO SERVICE.