As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 3050, AFTER TAKEOFF THE CREW REPORTED AN F/O PITCH TRIM SWITCH FAILED WITH AN EICAS MESSAGE OF TRIM CPT SW FAIL. THE CAPTAINS PITCH TRIM WAS REPORTED AS WORKING NORMALLY, AND THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE HORIZONTAL STAB CONTROL UNIT (HSCU), OPERATIONALLY TESTED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.