range, that would fly between the newer airports constructed in all nine islands of the archipelago (between 1981 and 1983). In 1976, the Portuguese Air Force offered two Douglas DC-6 airplanes with a continental range. They were to be used effectively during a TAP strike that allowed SATA to extend their services to Lisbon. By April 14, 1977, it would have transported 1 million passengers throughout the regional market. It was originally formed as a private company (50% interest held by Bensaude & Co.Lda.), but on 17 October 1980 it was reborn as a state-owned enterprise (SOE) operated by the Regional Government and TAP Air Portugal. It became a signatory of the European Regions Airline Association (ERA) and the International Air Transport Association (IATA) charters in 1980 when it became an SOE, which it remains as of March 2014. The name of the airline changed in 1980 to SATA Air Açores. Between 1989 and 1990, the inter-island HS 748 aircraft were gradually replaced by BAe ATP, after the first aircraft (named Santa Maria) entered service in 1989. Eventually, other planes would be added, reflecting the regional politics, each aircraft would be named after an island (Flores, in 1990, and Graciosa, in 1991), including a small Dornier 228-212 that was added to link the small island of Corvo, which substituted a CASA C-212 Aviocar Series 100 operated by the Portuguese Air Force. A revitalization program was initiated in the late part of the 2000s to rationalize and upgrade existing aircraft, resulting in a competition between ATR and Bombardier to supply the necessary equipment that met the needs of the archipelago. The decision to purchase Bombardier NextGen aircraft was not without controversy. The latest phase of its fleet renovation, which complies with a 15-20 year plan, began in July 2009, with the entry into service of two Bombardier Q200. It was followed up with a ceremony in Toronto, Ontario, on 25 January 2010, when the first next-generation Bombardier Q400, registration CS-TRD, was unveiled. The first of a series (four in all) began arriving at the end of January 2010; the second, registration CS-TRE, was received on 11 February, and the remaining planes arrived in March (registered CS-TRF and CS-TRG). The Q400 aircraft were projected for the short distance, high-density markets with the archipelago and Macaronesian destinations. Its two PW150A engines, allows the planes to cruise at per hour, while transporting 80 passengers