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Summary

Summary

The pilot, with his wife as passenger, was conducting a bore inspection. A search was instigated when the helicopter did not return by night fall. The wreckage was found the next morning. The helicopter had struck the ground in an inverted attitude amongst trees in a dry swamp. There were no witnesses to the accident. The subsequent investigation concluded that control of the helicopter had been lost at a low height and the helicopter had crashed inverted while the rotor was under positive 'g' flight loads, with little rolling motion. No evidence of pre-accident failure of the helicopter or occupant incapacitation was found. Examination of the wreckage and the surrounding area indicated that the helicopter had struck a tree, by settling into its crown, prior to control being lost. No reason for the descent into the tree could be established. It is probable that, following the tree strike the pilot over-reacted with the collective control and was then unable to regain control of the helicopter in the height available.

 
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