The Australian Transport Safety Bureau (ATSB) has commenced an investigation into a collision with terrain involving Marlborough-based Stock Air Helicopters Robinson R22, VH-ZZM, at Alface Station, some 115 km West of Rockhampton, last month on Saturday 12 July.
Initial investigations by the ATSB reveal that while conducting a practice autorotation, the helicopter collided with terrain.
The helicopter was substantially damaged and a pilot sustained serious injuries.
As part of the investigation, the ATSB will interview the pilot and gather additional information.
A report will be released within several months.