As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN FLIGHT THE THE CREW REPORTED A PLASTIC BURN SMELL COMING FROM THE GASPERS. THE F/A REPORTED THAT THE SMELL WAS ORIGINATING IN THE AREA OF THE COAT CLOSET. MAINTENANCE INSPECTED ELECTRICAL EQUIPMENT BAY, AVIONICS RACK AND THE UNDER FLOOR AREA ADJACENT TO COAT CLOSET. ALSO, RAN UP AIRCRAFT WITH HIGH ELECTRICAL LOAD ITEMS TURNED ON. NO DISCREPANCIES WERE FOUND.