As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: L-1 FLIGHT DECK WINDSHIELD CRACKED OCCURRED AT 39000 WITH NO OVERHEAT INDICATION. OVERHEAT LIGHT CAME ON APPROXIMATELY 30 SECOND AFTER THE WINDSHIELD CRACKED. REMOVED AND REPLACED WINDOW HEAT CONTROL UNIT (AALA202008039011) FOR L1 WINDOW AND THE L1 WINDSHIELD (AALA202008019003).