As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 PROPELLER HEATER MATS CAUGHT FIRE DURING TAXI. NR 1 ENGINE NOT RUNNING. NOTED NR 1 PROP HEAT SELECTED ON AND ADV LIGHTS CYCLING. R & R THE NR 2 AND 3 BLADES ON THE NR 1 PROPELLER. R & R THE NR 1 AND 3 BULKHEAD HEATER LEADS AND NR 1 BRUSH BLOCK AS A PRECAUTION IAW W/C 61-10-07, HSCMM 61-13-02, AND AMM 61-10-11 GROUND RAN ACFT IAW SRT MANUAL