Alaska Air Group’s regional division Horizon Air late this month will start equipping its fleet of Bombardier Q400 turboprops with Wide Area Augmentation System (WAAS) technology and expects the retrofit to be completed by the end of the year. The Seattle-based regional plans to install the GPS-based technology on 48 of the turboprops, Horizon technical pilot Steve Bush tells Aviation Week. Horizon currently has 50 Q400s in its fleet but will remove–and therefore not retrofit–two of ...


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