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Jet in fatal flight leaving NH may have had stability issues, safety board says

A business jet may have experienced problems with its stability before encountering turbulence or some other roughness that caused the death of a passenger, officials said Monday.

The National Transportation Safety Board said it's looking at a “reported trim issue," a reference to adjustments that are made to an airplane’s control surfaces to ensure it is stable and level in flight. The agency initially reported that the plane experienced severe turbulence late Friday afternoon.

Last year, the Federal Aviation Administration instructed pilots flying the same model of Bombardier aircraft to take extra pre-flight measures after trim problems had been reported.

Investigators will have more information after they've analyzed the flight data recorder, cockpit voice recorder and other information, such as weather at the time, the NTSB said.

On March 4, the Bombardier executive jet was traveling from Keene, New Hampshire, to Leesburg, Virginia, before diverting to Bradley International Airport in Connecticut. Three passengers and two crew members were aboard.

The person who died, identified as 55-year-old Dana Hyde of Cabin John, Maryland, was brought to a hospital in Hartford, Connecticut, where she was later pronounced dead, Connecticut State Police said Monday.

The chief medical examiner’s office found that she died from blunt-force injuries.

The jet’s owner, Conexon, based in Kansas City, Missouri, confirmed in an email that Hyde was the wife of a company partner, Jonathan Chambers, who was also on the plane with his son. Neither father nor son were hurt, the company said.

Trim problems can also be responsible for buffeting or altitude changes.

The NTSB is looking at all of those factors and plans to issue a preliminary report in two to three weeks, said spokesperson Sarah Sulick.

The FAA issued its air directive last year after multiple instances in which the horizontal stabilizer on the Bombardier BD-100-1A10 caused the nose of the plane to turn down after the pilot tried to make the aircraft climb.

The directive, which applied to an estimated 678 aircraft registered in the U.S., called for expanded pre-flight checks of pitch trim and revised cockpit procedures for pilots to be used under certain circumstances.

The Bombardier BD-100-1A10 is more commonly known as the Challenger 300 and Challenger 350.

Bombardier, the Canadian manufacturer of the jet, said in a statement that it cannot comment on the potential cause of the in-flight problem but extended its “deepest sympathies to all those affected by this accident.”

“We stand behind our aircraft, which are designed to be robust and reliable in accordance with Transport Canada and all international airworthiness standards,” the company said.

Sharp reported from Portland, Maine.

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