As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TURNING THE WINDSHIELD HEAT OFF IN FLIGHT, THE CREW REPORTED A BURNING SMELL AND SMOKE ACCOMPANIED BY A LT WINDSHIELD OVERHEAT EICAS MESSAGE. MX CONFIRMED THE LT WINDSHIELD TEMPERATURE CONTROLLER FAILED. THE CONTROLLER WAS REPLACED.