As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 2476 - EWR - FLIGHT CREW REPORTED BACK UP PITCH TRIM SWITCH INOPERATIVE. CREW PERFORMED AIR RETURN UNEVENTFULLY. EWR MX REMOVED AND REPLACED SWITCH AND PERFORMED OPERATIONAL CHECK SUCCESSFULLY. ACFT WAS APPROVED TO RETURN TO SERVICE.