"We saw a reduction in pilot error crashes where crew
interaction was a factor. That, and weather-related decisions.
Trends indicate that great progress has been made to improve the
decision-making of pilots and coordination between the aircraft's
crew members."
Source: Susan Baker, lead author of a study
conducted by the Johns Hopkins Bloomberg School of Public Health
that found although the overall rate of mishaps involving US
airliners has remained more-or-less constant since the early 1980s,
those pilots are to blame for far fewer accidents than before.