Helicopter Self-Destructs After Landing

Some observers speculate that a bad episode of ground resonance may be to blame for the violent self-destruction of a rescue helicopter as it landed in a field in Para, Brazil. The helicopter appears to be a Eurocopter A-Star AS350BA. That there were four people aboard - two pilots, a doctor, and a nurse - and all escaped serious injury in spite of the helicopter engaging full-flail mode.

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