NTSB Reports on Fatal Business Jet Incident and Passenger Death.

A business jet flying over New England earlier this month violently pitched upward then downward, fatally injuring a passenger, after pilots responding to automated cockpit warnings switched off a system that helps keep the aircraft stable, according to a preliminary report by the National Transportation Safety Board. The report described a series of things that went wrong before and after the plane swooped out of control. The trim system of the Bombardier Challenger 300 twin-engine jet was the subject of a Federal Aviation Administration mandate last year that pilots conduct extra safety checks before flights.