As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING GROUND TIME, THE CAPTAINS WINDSHIELD HEAT MALFUNCTIONED WINDSHIELD SHATTERED THE WINDSHIELD AND IGNITED THE TRIM/SEALANT AT THE BASE OF THE WINDSHIELD. THE FIRST OFFICER PUT OUT THE FIRE WITH THE PORTABLE FIRE EXTINGUISHER (SEE LP NR 3979492). NO PASSENGERS WERE ONBOARD AT THE TIME. THE FLIGHT WAS CANCELLED. MAINTENANCE HAS REPLACED ALL APPLICABLE COMPONENTS AND WINDSHIELD AND THE AIRCRAFT HAS RETURNED TO SERVICE.