What was found
MEM - DURING POST FLIGHT INSPECTION THE CREW REPORTED AN ELECTRICAL BURNING SMELL BY ROWS 16-19. MAINTENANCE INSPECTED THE AIRCRAFT AND IDENTIFIED A BAD BALLAST ABOVE ROW 16. THE CABIN LIGHTS WERE PLACED ON MEL AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. THE AIRCRAFT LANDED IN IAH WITHOUT INCIDENT WHERE MAINTENANCE REMOVED AND REPLACED THE AFFECTED LIGHT BALLAST, OPERATIONALLY TESTED WITH NO DEFECTS. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.