As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 6160 - IAD-TYS - DURING CRUISE, RETURNED TO IAD DUE TO TAT PROBE HEATER FAILED IN FLIGHT. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE REMOVED AND REPLACED TAT PROBE, OPS CHECKS OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)