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Accident investigation report completed and information captured
Narrative: A Hughes 269C helicopter, PH-OKE, crashed at Hilversum Airport, injuring all three occupants. The helicopter was operating on a survey flight with two observers on board. After startup the helicopter taxied to runway 31 at a height of 1-1,5 meters. It then suddenly banked and the rotor blades impacted the ground while the helicopter rolled over.
The Dutch Safety Board considered it likely that a momentary lapse of attention on the part of the pilot caused left skid of the helicopter to hit the ground in a traversing motion.