We’re still collecting data for this aircraft. Routes appear once we’ve seen it fly enough times.
The inability of the dual student to maintain directional control of the helicopter during the landing roll when the left skid sank into an area of thick, soft, sticky tar, and the instructor pilot's improper decision to perform a full-down autorotational landing to a surface which had already shown itself to be soft. Factors include a soft, sticky landing surface, and high temperature that contributed to the softening of the landing surface.
Hughes 269A