Aviation safety investigations & reports

Collision with terrain involving a Robinson R22 helicopter, VH-WDB, 90 km N Bourke, NSW on 23 May 2014

Investigation number:
AO-2014-093
Status: Completed
Investigation completed

Summary

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On 23 May 2014, at about 1100 Eastern Standard Time, the pilot of a Robinson R22 helicopter, registered VH-WDB, conducted a local flight on a property about 90 km north of Bourke, New South Wales. The pilot flew the helicopter to a cleared landing area adjacent to a stock yard. From about 600 ft above ground level (AGL), he commenced the descent to the landing site, aiming to approach quietly and slowly to minimise disturbance to stock grazing nearby. When at about 9-15 ft AGL, he commenced a left turn into a light breeze, then at his 11 o’clock position, and entered the hover.

As the helicopter turned left, the pilot felt a violent shudder through the cyclic control. The pilot reported that the helicopter continued to yaw and he applied opposite pedal in attempt to counteract the yaw, however the pedal was ineffective and the yaw accelerated. The pilot rolled the throttle off, moved the cyclic forward and lowered the collective. As the helicopter descended rapidly, the pilot then raised the collective to cushion the landing. The right skid touched down first and the helicopter rolled to the right, coming to rest on the right side.

No aircraft unserviceabilities, including in the tail rotor control system were found other than those sustained in the accident. The drive belts were found intact and had moved forward one groove on the upper sheave consistent with a power-on main rotor strike.

The helicopter was substantially damaged and the pilot was uninjured.

 

Aviation Short Investigations Bulletin - Issue 33

Download Final Report
[Download  PDF: 152KB]
 
 
Alternate: [Download  DOCX: 1.7MB]
 

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General details
Date: 23 May 2014   Investigation status: Completed  
Time: 1120 EST   Investigation level: Short - click for an explanation of investigation levels  
Location   (show map): 90 km N Bourke    
State: New South Wales   Occurrence type: Collision with terrain  
Release date: 06 August 2014   Occurrence category: Accident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Robinson Helicopter Co  
Aircraft model R22  
Aircraft registration VH-WDB  
Serial number 4629  
Type of operation Private  
Sector Helicopter  
Damage to aircraft Destroyed  
Departure point Congararra Station, NSW  
Destination Congararra Station, NSW  
Last update 14 November 2018