Tail rotor failure and collision with terrain involving Robinson R22 Beta, VH-UBY, about 56 km west of Coonamble Airport, New South Wales, on 6 February 2026

AO-2026-063

Summary

The ATSB is investigating a tail rotor failure and subsequent collision with terrain involving a Robinson R22 Beta, registered VH-UBY, about 56 km west of Coonamble Airport, New South Wales, on 6 February 2026.

During aerial mustering operations approximately 100 ft above the ground, the pilot and sole occupant of the helicopter experienced an RPM spike followed by a yaw and a loss in rudder effectiveness. Unable to counteract the yaw, the pilot attempted to land the helicopter, which spun several times during the descent.

Upon contact with the ground, the helicopter rolled onto its side, resulting in substantial damage. The pilot experienced serious injuries, but was able to exit the helicopter without assistance. There was no fire.

The ATSB has commenced the examination and analysis of the initial evidence collected.

To date the investigation has included:

  • a review of engineering reports provided by the maintainer
  • interviewing the pilot
  • a detailed examination of the tail rotor driveshaft
  • examination of maintenance records.

The continuing investigation will include:

  • examination of the manufacturer's drawings and specifications
  • analysis of related occurrences.

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.

Last updated:

Occurrence summary

Investigation number AO-2026-063
Occurrence date 06/02/2026
Occurrence time and timezone 10:15 Australian Eastern Daylight Time
Location About 56 km west of Coonamble Airport
State New South Wales
Report status Pending
Anticipated completion Q4 2026
Investigation level Short
Investigation type Occurrence Investigation
Investigation phase Examination and analysis
Investigation status Active
Mode of transport Aviation
Aviation occurrence category Abnormal engine indications, Collision with terrain, Propeller/rotor malfunction
Occurrence class Accident
Highest injury level Serious

Aircraft details

Manufacturer Robinson Helicopter Co
Model R22 Beta
Registration VH-UBY
Serial number 4733
Aircraft operator Dustdevil Helicopters Pty Ltd
Sector Helicopter
Operation type Part 138 Aerial work operations
Activity General aviation / Recreational-Aerial work-Agricultural mustering
Injuries Crew - 1 (Serious)
Damage Substantial