As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE AT FL390, AMBER “WINDSHIELD HEAT” CAS DISPLAYED, ONE MINUTE LATER AFTER CYCLING WINDSHIELD HEAT THE LH WINDSHIELD CRACKED. MX C/A: ACFT STILL AOG IN KFAR, SETUP WITH BOMBARDIER MRT TO R&R CONTROLLER AND WINDSHIELD, AWAIT PARTS DELIVERY AT THIS TIME.