As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 1386 -FLIGHT CREW REPORTED TAT 1 HEA INOP WARNING ON EICAS DURING CLIMBING. CREW PERFORMED AIR RETURN AND LANDED UNEVENTFULLY. MX REMOVED AND REPLACED TAT 1 PROBE AND PERFORMED OPERATIONAL CHECK SUCCESSFULLY. AC WAS APPROVED TO RETURN TO SERVICE.