were completed in 1993 and were largely funded by NATO. From 1990, the 719 Squadron replaced its helicopters with Bell 412. However, these were later moved to the 330 Squadron, with the 719 becoming a pure Twin Otter operator. Passenger transport was reorganized from 25 October 1992, whereby the military's charter flights were terminated and the military instead bought tickets with scheduled flights. As part of this reorganization, the military air terminal was closed and the service moved to the civilian terminal. In 1996 and 1997, the Hawk system was replaced with the Norwegian Adapted Surface-to-Air Missile System (NASAMS). Following the 2008 decision to purchase the F-35 Lightning II, the Norwegian Armed Forces carried out an analysis of its air base structure. The military wanted to reduce the number of bases for the F-35 to one, with Bardufoss, Bodø, Evenes and Ørland being the prime candidates. Ørland, with an advanced base at Evenes, was selected because of its location centrally in Norway and its existing squadron of F-16s. The increased noise levels of the F-35 became a major concern during the evaluation of Bodø, as the air station's proximity to the town would create even higher levels of noise pollution. This would have required the runway to be moved southwestwards, incurring high costs. At the same time, Bodø lacked proper training areas and would give less flexibility in a forty-year perspective. This will cause Bodø Main Air Station to be closed, although the 330 Squadron detachment will remain. Operations The 330 Squadron has a detachment with three Westland Sea King Mk 43B helicopters at Bodø. They are part of the Norwegian Air Ambulance service, organized by the four regional health authorities. Medical personnel is provided by Nordland Hospital Trust, while the remaining personnel are military. The detachment flew 367 missions and 840 hours in 2009. The Sea Kings' primary role is for search and rescue (SAR) mission, with a portfolio northwards to central Troms and southward throughout Nordland. In SAR missions, the squadron operates under the management of the Joint Rescue Coordination Centre of Northern Norway located in downtown Bodø. The detachment's secondary responsibility is as an air ambulance, in which it is under management of Nordland Central Hospital. Civilian sector The Norwegian Aviation Museum is located on the premises of Bodø Airport. Bodø is also home to the Civil Aviation Authority of Norway and Bodø Air Traffic Control Center.