What was found
IAH - FLIGHT 2012, DURING PRE-FLIGHT INSPECTION THE CREW REPORTED AN ELECTRICAL BURNING SMELL IN THE CABIN BEFORE BOARDING. MAINTENANCE INSPECTED THE AIRCRAFT AND FOUND THE SIDEWALL LIGHT ASSY AT SEAT 1A TO HAVE A BURNED CONNECTOR. MAINTENANCE PLACED THE LIGHT ASSY ON MEL, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. MAINTENANCE REMOVED AND REPLACED THE SIDEWALL LIGHT ASSEMBLY AT SEAT 1A, OPERATIONALLY TESTED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.