The death of a woman on a private jet this month was caused by turbulence — but it was not related to the weather, the investigation Report says.

Dana Hyde, 55, a prominent Washington, D.C., attorney who had served in the Obama and Clinton administrations, suffered fatal injuries March 3 while on a corporate jet over New England. The initial statement from the Federal Aviation Administration said the craft had encountered “severe turbulence.”

The report by the National Transportation Safety Board said the Aircraft experienced a force about four times the pull of gravity when the pilots, who were attempting to resolve warning messages,  disabled a setting that is used to stabilize the aircraft.

“As soon as the switch position was moved, the airplane abruptly pitched up,” the preliminary report said.

Over the course of a few seconds, the passengers were subjected to violent movement — 3.8Gs up, then 2.3Gs downward, then 4.2Gs upward.

The report does not specify whether Hyde was seated or wearing a seatbelt at the time.

The Bombardier CL30 had been on a flight scheduled to take about 90 minutes, from Keene, N.H., to Leesburg, Va. The pitching incident occurred about halfway through, and after Hyde’s injury the flight was diverted to Bradley International Airport, north of Hartford, Conn. She was pronounced dead at a Hartford hospital; the coroner stated the cause was blunt-force trauma.

There were two pilots onboard and two passengers besides Hyde.

A Washington Post article about her death said the two other passengers were Hyde’s husband, Jonathan Chambers, and the younger of their two sons. They had been on a trip to visit schools. The plane belonged to Conexon, an internet services company of which Chambers is a partner.

The pilots had received multiple alerts from the aircraft prior to the incident, and even aborted their first takeoff attempt because of an issue with the aircraft. They discovered a protective cover used when the aircraft is parked had been left on the plane, the report said.

After restarting the plane, they received additional alerts from the aircraft but proceeded with the takeoff and flight because the alerts did not meet the threshold for grounding.

At the time of the incident, the pilots were attempting to resolve the issues by using a checklist for a failure of the primary stabilizer trim, the report said.

Hyde, who grew up in rural eastern Oregon, received an undergraduate degree from UCLA in 1989 and a law degree from Georgetown University. She had worked at the State Department and the Office of Management and Budget, and served as counsel to the 9/11 Commission. Her older son is a UCLA student.

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