Airbus Helicopters and its predecessor companies have established a wide range of helicopter firsts, including the first production turboshaft-powered helicopter (the Aérospatiale Alouette II of 1955); the introduction of the Fenestron shrouded tail rotor (on the Gazelle of 1968); the first helicopter certified for full flight in icing conditions (the AS332 Super Puma, in 1984); the first production helicopter with a Fly-by-wire control system (the NHIndustries NH90, first flown in full FBW mode in 2003); the first helicopter to use a Fly-by-light primary control system (an EC135 testbed, first flown in 2003); and the first ever landing of a helicopter on Mount Everest (achieved by an AS350 B3 in 2005).