As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF, THE CREW NOTED A WINDSHIELD HEAT FAIL CAS MESSAGE. THE CREW RETURNED TO THE GATE AND CONSULTED WITH MX. SINCE THE SPARE WINDSHIELD SENSOR WAS ALREADY ON MCO, MX REPLACEDTHE WINDSHIELD AND RETURNED THE AC TO SERVICE. (K)