As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLW - FLT 4091 - CREW REPORTED THAT DURING TAXI, THE NR 1 TAT HEAT WAS INOPERATIVE. AIRCRAFT RETURNED TO GATE. MAINTENANCE REMOVED AND REPLACED THE NR 1 TAT PROBE IAW EMB-145 MM 34-15-03. OPERATIONAL CHECKS WERE SATISFACTORY. AIRCRAFT RELEASED FOR SERVICE. (X)