NTSB rules out turbulence as cause of death on private jet flight.

The National Transportation Safety Board (NTSB) has revealed that the death of a passenger on a private jet earlier this month was not caused by weather turbulence. The aircraft experienced a force about four times the pull of gravity when the pilots disabled a setting that is used to stabilize the aircraft. The violent movements resulted in fatal injuries to a passenger, who was identified as Dana Hyde, a former Obama administration White House official. The report does not specify whether Hyde was seated or wearing a seatbelt at the time.