in Sirdal. Another such incident occurred on 10 November 1986 near Bodø, this time with one fatality. In 1988 another helicopter crashed at Tyinvann in 1988, without fatalities and with the aircraft being repaired. During the late 1980s the helicopters were often grounded due to lack of spare parts, which on 6 July 1988 hindered the unit form participating in aiding the sinking Piper Alpha oil platform. The National Air Ambulance Service was inaugurated in 1988 and the 330 Sqn became part of this. This involved the acquisition of eight smaller ambulance helicopters—later increased to twelve—which could relieve the Sea Kings. Meanwhile, the air ambulance role of the Sea Kings were increased with the inclusions of an anaesthesiologist on board. This would also aid in SAR missions, where the rescued could be severely injured. The task of providing the anaesthesiologist was placed with the county municipality. The accident in 1988 reduced the fleet to eight. This spurred the Ministry of Justice to wet lease the services of the commercial companies Helikopter Service and Mørefly, respectively operating S-61 and Eurocopter AS332 Super Puma. These were placed at Ålesund Airport, Vigra from 1 November 1988 to 31 January 1989, at Sandefjord Airport, Torp from 1 February 1989 to 31 December 1990, and from 1 January to 31 July 1991 at Sola. The Sea Kings had two accidents in 1990 and 1991, respectively, after which the helicopters needed to be renovated. A new Mk 43B was delivered in August 1992, followed by the renovated aircraft from the 1990 crash. The main difference was new avionics. The squadron then, one by one, upgraded the avionics on the entire fleet, a job completed in 1996. The role of the SAR service was evaluated in 1992 and it ended up with Parliament approving the purchase of two more helicopters, bringing the total to twelve. The two new helicopters were delivered in 1995. With the additional helicopters, the 330 Sqn could open a new base, at Ålesund Airport, Vigra. The goal was to increase the coverage in Møre og Romsdal and Sogn og Fjordane, situated midway between Ørland and Sola. By 1998 the government instead determined that the extra helicopters should be based in Eastern Norway and moved the base to Rygge Air Station. The new base became operational on 22 March 1999. This relieved the 720 Sqn for their SAR task, for which they neither had