As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TRIP ID NR: 1110632 DIVERTED FOR WEATHER. WHILE ON APPROACH, WITH WINDSHIELD HEAT ON, CREW NOTICED BLUE ARCING FOLLOWED BY FILAMENT WIRES GLOWING ORANGE. WINDSCREEN HEAT WAS SHUT OFF THEN FILAMENTS STOPPED GLOWING BUT WINDSCREEN OUTER PLY CRACKED. MAINTENANCE REPLACED THE WINDSHIELD AND THE TEMPERATURE CONTROLLER.