Aviation safety investigations & reports

VFR into IMC - South Turramurra, New South Wales, 22 July 2011, VH-CIV, Bell 206L Helicopter

Investigation number:
AO-2011-085
Status: Completed
Investigation completed

Safety summary

Download Final report
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What happened

At 0900 Eastern Standard Time on 22 July 2011, a Bell 206L helicopter, registered VH-CIV, with a pilot and one passenger, departed from Rosehill, New South Wales on a private flight to the Sydney Adventist Hospital near South Turramurra. As the aircraft neared the destination, the pilot encountered low cloud and rain in the area. Shortly thereafter, witnesses observed the helicopter descending rapidly, with the tail section separated. The helicopter subsequently collided with terrain, fatally injuring both occupants.

What the ATSB found

The ATSB found it was likely that during manoeuvring in the area of low cloud and rain, the pilot inadvertently flew into reduced visibility conditions, leading to the onset of disorientation and a loss of control of the helicopter.

What has been done as a result

There were no systemic safety issues identified as a result of the ATSB investigation and no specific safety actions taken. An ATSB research report released in July 2011 addressing avoidable accidents is relevant to the circumstances found during the investigation of this accident.

Safety message

The hazards associated with visual flight into conditions of limited visibility are significant. The ATSB has investigated a number of accidents associated with visual flight rules (VFR) flight into instrument meteorological conditions (IMC), and has published several research reports into the factors that can contribute to this type of accident. The Civil Aviation Safety Authority (CASA) also maintains a library of advisory materials aimed at assisting pilots in decision-making before and during visual flights in conditions where continued visibility cannot be assured.

Pilots and operators are encouraged to familiarise themselves with guidance material on safe visual flight operations, and use this to develop appropriate strategies for planning and in-flight decision making if reduced visibility conditions are encountered.

Although no definitive conclusion could be made with respect to the extent to which any external pressures may have affected the pilot’s decision making, the accident does serve as a reminder to pilots of the need to manage pressures and external factors in the planning and conduct of any flight.

Download Final report
[Download  PDF: 2.69MB]
 
 
 

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General details
Date: 22 July 2011   Investigation status: Completed  
Time: 0915 EST    
Location   (show map): South Turramurra, Sydney   Investigation type: Occurrence Investigation  
State: New South Wales   Occurrence type: VFR into IMC  
Release date: 27 August 2012   Occurrence class: Operational  
Report status: Final   Occurrence category: Accident  
  Highest injury level: Fatal  

Aircraft details

Aircraft details
Aircraft manufacturer Bell Helicopter Co  
Aircraft model 206  
Aircraft registration VH-CIV  
Serial number 45125  
Type of operation Private  
Sector Helicopter  
Damage to aircraft Substantial  
Last update 14 November 2018