As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT AND RIGHT ELECTRONIC ENGINE CONTROL FAULTED AND TOTAL AIR TEMPERATURE PROBE HEATER FAILED. EMERGENCY DECLARED. RETURNED TO DEPARTURE, LANDING UNEVENTFUL. REMOVED AND REPLACED TAT PROBE IAW AMM 34-12-03. OPS CHECKED GOOD. AIRCRAFT WAS GROUNDED.