As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG BURNING ODOR NOTED IN COCKPIT AND FIRST CLASS SECTION. MAINTENANCE UPON INSPECTION FOUND PCB FOR WINDSHIELD DEICE CONTROL 1HL23 TO BE BURNED. REMOVED AND REPLACED PCB AS REQURIED PN HC921H0467-000. PERFORMED OPS CHECKS ALL GOOD AT THIS TIME. INSPECTED, CLEANED SURROUNDING AREA AND WIRING NO DEFECT NOTED ALL CHECKS GOOD.