What was found
THE CREW REPORTED A BURNING SMELL IN THE CABIN BY SEAT 1A. THE ACFT RETURNED TO DEPARTURE, WHERE IT LANDED WITHOUT INCIDENT. MX INSPECTED THE ACFT, R & R THE CONTROL MODULE, PC BOARD, AND LIGHT BALLAST AT SEAT 1A, OPS TESTED WITH NO DEFECTS, AND THE ACFT WAS APPROVED FOR RETURN TO SERVICE.