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NTSB find vibration played part in 525 crash

18th January 2018 - 19:02 GMT | by Helen Haxell in London


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Six months on from the Bell Helicopter 525 Relentless return to flight, the US National Transportation Safety Board (NTSB) has published its report on the fatal crash of the flight test vehicle 1 (FTV-1).

The accident study, released on 17 January, has shown that during a routine test flight on ...

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