A long time ago....
I recall a case in 1990 with a Northwest Airlines 727 crew that were convicted and went to jail after drinking late into the night, then flying the airplane with passengers from Fargo, ND to Minneapolis.
Two hours after the flight landed, the captain tested .13, the FO tested .06 and the FE was .08.
The captain got 16 months, the other two got a year in prison.
A waitress at the bar said the captain had 15 rum and colas before he left the bar at 11:30. The crew reported for the 40 minute early morning (0630 departure) flight and were reported to the airline by passengers who were in the same bar the night before and recognized the pilots.
The captain went through rehab and later earned all his license and ratings back. He was rehired by Northwest where he flew until age 60 as a B-747 captain.