As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE INBOUND CABIN CREW REPORTED TO CUSTOMER SVC THERE WAS AN ELECTRICAL BURNING SMELL IN THE CABIN. NO LOCATION & NO WRITE UP WITH NO SMOKE IN CABIN REPORT INITIATED. THE FLIGHT ATTENDANT WHO REPORTED THE BURNING SMELL RETURNED TO THE ACFT TO POINT OUT THE LOCATION WHICH WAS A COFFEEMAKER HOTPLATE WITH A FOREIGN SUBSTANCE ON IT. THE COFFEEMAKER WAS CLEANED & THE PROBLEM RESOLVED. THE INBOUND CAPT WAS NEVER NOTIFIED IAW PROCEDURE.