Originally Posted by jlemon

4. (1983) Your job as an airport police officer at Evansville, Indiana has you more familiar than most with the airlines and aircraft types that serve EVV. Lately, the only jets you ever see at EVV are DC-9s from Eastern and US Air. Eastern used to fly 727s into EVV but it’s been a while since any of those were scheduled through here. Imagine then your surprise to see a new jet aircraft type (Not a McDonnell-Douglas) operating with a different airline than EA or AL. The airplane overnights in Evansville before returning to the airport from whence it originated the next morning. Identify the airline, the aircraft and the city it flies into EVV from.

Perhaps this was Air Illinois operating a BAC One-Eleven up to Chicago O'Hare.

Threatening floodwaters notwithstanding, it's good to see that your mind is still flooded with all manner of aviation minutiae. Air Illinois in from and out to ORD is correct!