What was found
IAH - FLIGHT 2121, DURING PRE-FLIGHT INSPECTION, THE CREW REPORTED THAT THE FIRST FOUR ROWS OF EMERGENCY LIGHTS WOULD NOT TURN OFF. MAINTENANCE INSPECTED THE AIRCRAFT AND REMOVED AND REPLACED THE NUMBER THREE AISLE PATH LIGHTING STRIP, OPERATIONALLY CHECKED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.