As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLT 2051 THE CREW REPORTED A PITCH TRIM MAIN INOP MESSAGE ON THE EICAS DURING TAXI. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE CAPTAINS PITCH TRIM SWITCH. ALSO REPLACED THE HORIZONTAL STAB ACTUATOR. OPERATIONAL CHECKS WERE GOOD.