As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE WAS NOTED IN FRONT ENTRANCE AREA DURING GROUND RUN. FLOOR WAS REMOVED. WINDSHIELD HEATING WIRES WERE SHORTED, MELTED, AND BURNED. CIRCUIT BREAKER NR 80A COVERS INSPECTION FOR THIS PROBLEM. ASC234 IS REPAIR FOR THIS PROBLEM. EVALUATION STILL IN PROGRESS.