sentences:  In 2005, the airport handled 621,513 passengers and registered 10,876 flights.The site was selected during World War II for a Royal Air Force (RAF) airfield, but by the time of the Japanese invasion of Borneo, work had not progressed beyond clearing the area of vegetation.After the Fall of Singapore, the Japanese military decided that its aircraft needed a refuelling stop between peninsular Malaya and the Philippines and decided to complete the RAF airfield site.