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CZ 05 044 EN
After warming up the engine, the pilot taxied to take-off RWY 06. Then he went down the whole length of RWY 06 several times with the engine set for the take-off power, trying to take off, according to the passenger evidence. However, all attempts to take off failed as the speed was not high enough. At the third take-off attempt, the aircraft turned left off the paved RWY 06 at its end, off the snow wall. At the fourth take-off attempt, the nose wheel lifted and dropped repeatedly, without an observable increase in the aircraft´s speed. Shortly after the last lift of the nose wheel, the aircraft suddenly changed direction by 30 degrees to the left, exited the paved surface of RWY 06, went into the snow wall and nosed over, damaging the wing tips and breaking the front undercarriage leg. As a result, the propeller blades were deformed and the engine mounting broke loose from the airframe structure.