The incident took place shortly after Vice President Joe Biden 's plane landed . It involved two planes at O'Hare International Airport in Chicago . One was a Boeing 737 and the other an Airbus A320. Federal officials are investigating a `` potential conflict '' between two planes at Chicago 's O'Hare International Airport , which happened shortly after Vice President Joe Biden 's plane landed . Federal officials are investigating .
The incident took place shortly after Vice President Joe Biden 's plane landed . It involved two planes at O'Hare International Airport in Chicago . One was a Boeing 737 and the other an Airbus A320. Federal officials are investigating .