What was found
OPERATING FLIGHT ARRIVED IN AT DESTINATION WITH A REPORT OF AFT CABIN TRIM VALVE ERRATIC AND A FAINT ELECTRICAL BURNING ODOR REPORTED BY THE AFT CABIN CREW. THE ACFT WAS INSPECTED BY MAINTENANCE AND NO DEFECTS WERE NOTED. IFE SYSTEM WAS INSPECTED, REF TBN 4430-04 WITH NO DEFECTS NOTED. TEMP CONTROL SYSTEM WAS TESTED IAW MM 21-63-00-710-004A, NO DEFECTS NOTED. NO FURTHER PROBLEMS REPORTED ON SUBSEQUENT FLIGHTS.