As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BURNING ODOR ON FINAL APPROACH IN COCKPIT, SELECTED WINDSHIELD HEAT TO WARM AND ODOR DISSIPATED, NO OTHER ABNORMAL INDICATIONS. REPAIRED BROKEN WIRE "A" AT CAPTAINS WINDSCREEN AND REPLACED CAPTAINS WINDSHIELD HEAT CONTROLLER, OPERATIONAL CHECK GOOD.