U.S. government-industry coalition says new efforts are needed to prevent crashes that follow inadvertent entry into IMC.
Citing the persistence of helicopter accidents linked to pilot spatial disorientation, the U.S. Helicopter Safety Team (USHST) is proposing more training that simulates flying in a lack of visibility and emphasizes recovery techniques in case of inadvertent entry into instrument meteorological conditions (IMC).
The Bell 206B pilot knew of the engine problem before takeoff, the TSB says.
Government weather agencies have high-tech tools for warning pilots about turbulence.
The board cited a June accident involving separation of a tail boom during a sightseeing flight in Hawaii.
