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ASN Wikibase Occurrence # 206482
Last updated: 18 November 2021
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Type:Silhouette image of generic A320 model; specific model in this crash may look slightly different
Airbus A320-232
Owner/operator:United Airlines
Registration: N428UA
MSN: 523
Fatalities:Fatalities: 0 / Occupants: 101
Other fatalities:0
Aircraft damage: Minor
Location:Chicago, IL -   United States of America
Phase: Taxi
Departure airport:Chicago, IL (ORD)
Destination airport:Washington, DC (IAD)
Investigating agency: NTSB
The left winglet on an Airbus A-320-200 contacted the right horizontal stabilizer and elevator on a Boeing 737-300 while both airplanes were taxiing for takeoff on runway 32L at the O'Hare International Airport. The initial taxi clearance given to both airplanes was Juliet, to Juliet-1, left on Tango to runway 32L with the Airbus following behind the Boeing. The crew of the Boeing reported they followed the taxi route and turned left onto Juliet-1. While on Juliet-1, they stopped short of the intersecting service road because of traffic in front of them and vehicles on the service road. Because traffic was backing up, the taxi clearance for the Airbus was amended to continue straight on Juliet, to Whiskey, to Tango, then back track on Tango, and hold short of Juliet-1. As the Airbus continued to taxi straight on Juliet it passed behind the Boeing. It was at this time that the left winglet on the Airbus contacted the underside of the right horizontal stabilizer and elevator on the Boeing. Both airplanes subsequently returned to the gates and were deplaned normally.

Probable Cause: The pilot-in-command failed to maintain clearance with the parked airplane during taxi for takeoff.



Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Download report: Final report


Photo of N428UA courtesy

Fort Lauderdale - Hollywood International (KFLL / FLL)
26 February 2020; (c) Anton Homma

Revision history:

22-Feb-2018 19:39 ASN Update Bot Added

Corrections or additions? ... Edit this accident description