The ATSB is investigating the collision with terrain involving Robinson R22 Beta, 44 km south of McArthur River Mine Aerodrome, Northern Territory, on 16 August 2020.

On 16 August 2020, a Robinson R22 Beta, registration VH-YMU, was being utilised for cattle mustering operations in remote country, from the Rocky Point Yards, Northern Territory, south of the McArthur River Mine Aerodrome. At about 1200 Central Standard Time, the pilot was required to conduct an emergency forced landing. The helicopter landed heavily, resulting in substantial damage to the machine and serious injuries to the pilot. It was reported that the forced landing was as a result of failed engine to main rotor gearbox drive belts. Another helicopter operating nearby was landed at the accident site and the pilot of that helicopter transported the injured pilot of VH-YMU to the McArthur River Mine Site for evacuation and medical treatment.

The evidence collection phase of the investigation will include interviewing the pilot, the pilot from the accompanying helicopter, and maintenance personnel, and a review of the aircraft’s maintenance documentation and any available recorded flight data.

A final report will be released at the conclusion of the investigation. Should a critical safety issue be identified during the course of the investigation, the ATSB will immediately notify relevant parties, so that appropriate safety action can be taken.