Aviation safety investigations & reports

Bell Helicopter Co 412, VH-NSV, Maersk Valiant WA, 23 November 1990

Investigation number:
Status: Completed
Investigation completed


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The pilot reported that the helicopter was taken off into the hover above the helideck, where power and performance checks were carried out. A left pedal turn at the hover was then initiated over the helideck markings to position the helicopter for take-off into a 10-15 knot wind. On completion of the turn a loud bang was heard, and a vibration felt. The helicopter was landed on the helideck, shutdown and passengers disembarked. The tail rotor had struck a communications receiver dish antenna located outside the helideck area. An inspection of the helicopter failed to reveal any pre-existing faults which may have prevented the pilot from holding the helicopter in a steady hover during the turn. This accident was not the subject of an on-scene investigation.

Download Final Report
[Download  PDF: 22KB]
General details
Date: 23 November 1990   Investigation status: Completed  
Time: 1430    
Location   (show map): Maersk Valiant    
State: Western Australia    
Release date: 28 December 1990   Occurrence category: Accident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Bell Helicopter Co  
Aircraft model 412  
Aircraft registration VH-NSV  
Serial number 33084  
Type of operation Charter  
Sector Helicopter  
Damage to aircraft Substantial  
Departure point Maersk Valiant WA  
Departure time N/A  
Destination Truscott WA