As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ON APPROACHB, COCKPIT CREW NOTICED A BURNING ODOR WHEN WINDSHIELD HEAT WAS SELECTED ON. APPROACH WAS CONTINUED AND ODOR WENT AWAY WHEN THE WINDSHIELD HEAT WAS SELECTED OFF. MAINTENANCE CONFIRMED POWER AND GROUND WIRES SECURED AS WELL AS THE SENSOR TERMINALS. MAINTENANCE REPORTED NO BURNED WIRES FOUND. THE WINDSHIELD HEAT OPERATIONAL CHECK WAS PERFORMED WITH SYSTEM CHECKING NORMAL. AIRCRAFT WAS RETURNED TO SERVICE.