American Airlines flight 2587 from Chicago O’Hare to Austin had a near-miss with a 1979 Cessna R182 that passed it with just about 400 feet of vertical separation on Wednesday.
The American Boeing 737 had been alerted to the traffic in the area, but lost it descending into fog on final approach. They responded to a traffic collision avoidance system (TCAS) alert as the Cessna flew directly into their approach path, almost right below.