On June 30, 2017 at 2130 central daylight time, the wingtip ("sharklet") of an Airbus A321, N991AU, operated by American Airlines flight 1162, contacted the horizontal stabilizer of a Bombardier CRJ200, N862AS, operated by SkyWest Airlines d.b.a. Eagle Flight 3047, during taxi at the Chicago O'Hare International Airport. The A321 received minor damage and the CRJ200 was substantially damaged. There were no injuries aboard either aircraft. The CRJ200 had landed and taxied to the terminal and had been instructed by air traffic control to follow another aircraft on taxiway A7. Another aircraft ahead stopped unexpectedly and the line of traffic ending with the CRJ200, had to stop. The A321 was taxiing along taxiway A, perpendicular to A7, and maneuvered to go around the protruding tail of the CRJ200. However, the left sharklet wingtip of the A321 contacted the horizontal stabilizer of the CRJ200.