"FAR Section 91.17 (a) prohibits any person from acting or attempting to act as a crewmember of a civil aircraft while having 0.040 g/dL (40.0 mg/dL) or more alcohol in the blood. "
Do I infer from this quote that there is a suggestion of Mr Leeward having had a drink?????
Ethanol, and methanol, the base ingredient of the likes of Vodka, and Gin, is a derivative of oil. Ethanol for spirit production, is a refinement of the stuff you put in your car, or aeroplane.
Do you have figures for 'background' levels of either ethanol, or methanol, in every human, muscle tissue?
Evidence, as far as I know, of recent alcohol consumption, is taken from blood level, not muscle tissue.
This event was very tragic, and any suggestion that the pilot was not 'fit', is in my view ill placed.
I