Not just illegal drugs but also over the counter and prescription drugs.
NTSB study summary here:
From another source it is stated that 6,700 pilots died in aircraft accidents in the years 1990 - 2012. The NTSB summary does not give any data on how many of these deaths involved drugs. Perhaps the study will include that data.
NTSB study summary here:
From another source it is stated that 6,700 pilots died in aircraft accidents in the years 1990 - 2012. The NTSB summary does not give any data on how many of these deaths involved drugs. Perhaps the study will include that data.