As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI OUT, PITOT`S HEAT ILLUMINATED WITH ASSOCIATED MASTER CAUTION LIGHT. EXTINGUISHED AFTER APPROX 30 SECONDS LIGHT CAME BACK ON AND THEN EXTINGUISHED AND REMAINED OFF. ACFT GROUNDED. ACCOMPLISHED FIM 30-31, TASK 802 WITH NO FAULTS NOTED ON INITIAL EVALUATION. AUTO AIR DATA SENSOR HEATING OPS TEST IAW 30-31-00-750-801, CHECK OK.