As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLIGHT ATTENDANTS REPORTED ELECTRICAL ODOR IN CABIN. ODOR WENT AWAY AFTER UTILITY BUSSES WERE TURNED OFF. EMERGENCY DECLARED, FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND FIRST CLASS NUMBER 1 COFFEEMAKER TRAY CONNECTOR BURNT. REPLACED TRAY. SYSTEM GROUND CHECK NORMAL OPERATION.