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).
Board recommends action to help forecasters cope with erroneous reports from weather sensors.
The NTSB says flight into IMC led to the California accident that killed 9.
The warning follows the July 4 crash of an R44 in Broome, Western Australia.
