Description

On 26 December 2007, a Bombardier CL 604 Challenger (D-ARWE) being operated by the German Company JetConnection BusinessFlight on a private charter flight from Almaty to Macau took off at night into icing conditions from a 4398 metres long runway which was covered by dry snow and roll control was lost just after beginning rotation. The aircraft wing tip impacted the runway surface and the aircraft subsequently crashed through the perimeter fence, the fuselage broke into three pieces and a fire started. The co pilot was killed and the other three occupants -two crew members and one passenger - sustained serious injuries.

Investigation

An Investigation was conducted by the Interstate Aviation Committee with assistance from the accident investigation agencies of the State of the Operator and the State of the Manufacturer. Flight Data Recorder (FDR) and Cockpit Voice Recorder (CVR) data were recovered.

The co-pilot had been assigned PF duties. It was established that ground de/anti icing with Type II fluid had been completed in accordance with normal procedures and that the aircraft commander had decided that Wing Anti Ice (WAI) should only be selected ‘on’ after take off. However, the Aircraft Flight Manual (AFM) stipulates that in the conditions prevailing for the take off, the wing anti-ice (WAI) system must be ‘on’ but that when Type II, III or IV anti-icing fluids have been applied, the WAI must only be selected ‘on’ just prior to thrust increase for takeoff.