Why are you guys defending the guy?
Were you in the same situation and feel sorry for him? Im sorry, but if you
worked hard enough to become an airline pilot you have to be smart enough to stay away from alcohol 12 hrs before your report time and keep it safe.
You cant? too bad, you shouldnt be flying.
if it's chronical, than you should seek profesional help.
0.23 is already too much. In Dubai, we have zero for both flying and driving and I dont see any problem. Ive been random tested a few times along the years and it was always zero, although I had drinks the night before but stopped 12 hrs before my report time.
Every individual's metabolism is diffrent so for some of us 8 or 10 hours is enough to get ridd of the booze from your system. In my company they made it 12 hrs (which is belived to be enough for most of us) to be on the safe side.