What was found
THE CREW NOTED DURING PREFLIGHT THE EMERGENCY FLOOR PROXIMITY LIGHTS WERE INOPERATIVE. BNA- MAINTENANCE PLACED FLOOR LIGHTING ON DMIDO TO PARTS NOT IN STOCK.THE AIRCRAFT WAS RETURNED TO SERVICE. IAH- MAINTENANCE REMOVED AND REPLACED THE FLOOR PROXIMITY LIGHT STRIP, PERFORMED A OPERATIONAL CHECK, NO DEFECTS NOTED, AND, THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE AFTER THE DMI WAS CLEARED.