Oslo Airport, Gardermoen opened on 8 October 1998, replacing the congested Fornebu. For the first time, an airline could receive sufficient landing slots to challenge SAS and Braathens on domestic routes. The low-cost carrier Color Air was established, and started flights from Oslo to Bergen using Boeing 737-300 aircraft. The following price war on the route saw lower ticket prices and increased capacity. Color Air filed for bankruptcy on 27 September 1999, ending a price war which had cost the airlines NOK 3 billion. The final demise of the air station came in 1999, when all stationary assets were sold, including 30 vehicles. The daily operation of the air station was transferred to the Royal Norwegian Navy, who have six employees at the base. Flesland Air Station has since only held mobilization status and will only be used by the air force in case of war and larger emergencies. Bergen Air Transport started flights to Notodden in 1999. A new secondary surveillance radar was built between 1999 and 2001 at Sotra. The domestic terminal was expanded with and a new baggage sorting area with in 2001.