O'hare International Airport
Aircraft Accident/Incident Report

Chicago, Illinois 60666
Tuesady, November 7, 2006 8:14 CST

NTSB Narrative Summary Released at Completion of Accident

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.

NTSB Probable Cause Narrative

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

Event Information

Type of Event Accident
Event Date 11/7/2006
Event Day of the Week Tuesday
Time of Event 814
Event Time Zone Central Standard Time
Event City Chicago
Event State ILLINOIS
Event Country --
Zipcode of the event site 60666
Event Date Year 2006
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? Yes
Event Location Latitude 415843N
Event Location Longitude 0875417W
Event Location Airport O'Hare International
Event Location Nearest Airport ID ORD
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 668
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 825 Central Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID ORD
Elevation of weather observation facility 668
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height 300
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Obscured
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 0.75
Air Temperature at event time (in degrees celsius) 10
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 70
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.91
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 216
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 22777
NTSB Notification Source FAA
NTSB Notification Date Nov 7 2006 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Dec 20 2007 6:59AM
User who most recently changed record NTSB\johb
Basic weather conditions Instrument Meteorological Cond
FAA District Office Schiller Park, IL FSDO

Aircraft Involved

Aircraft #1

Aircraft #2

Aircraft Registration Number N428UA N328UA
NTSB Number CHI07FA020A CHI07FA020B
Missing Aircraft Indicator -- --
Federal Aviation Reg. Part Part 121: Air Carrier Part 121: Air Carrier
Type of Flight Plan filed IFR IFR
Flight plan Was Activated? -- --
Damage Minor Substantial
Aircraft Fire None --
Aircraft Explosion None --
Aircraft Manufacturer's Full Name Airbus Boeing
Aircraft Model A-320-200 737-300
Aircraft Series Identifier -- --
Aircraft Serial Number 523 --
Certified Max Gross Weight 150400 --
Aircraft Category Airplane Airplane
Aircraft Registration Class -- --
Aircraft is a homebuilt? No No
Flight Crew Seats -- --
Cabin Crew Seats -- --
Passenger Seats -- --
Total number of seats on the aircraft 146 --
Number of Engines 2 --
Fixed gear or retractable gear Retractable Fixed
Aircraft, Type of Last Inspection Continuous Airworthiness --
Date of Last Inspection -- --
Airframe hours since last inspection -- --
Airframe Hours -- --
ELT Installed No --
ELT Activated No --
ELT Aided Location of Event Site No --
ELT Type -- --
Aircraft Owner Name US Bank --
Aircraft Owner Street Address One federal Street --
Aircraft Owner City Boston --
Aircraft Owner State MA --
Aircraft Owner Country USA --
Aircraft Owner Zipcode 02110 --
Operator is an individual? No --
Operator Name UNITED AIRLINES INC UNITED AIRLINES INC
Operator Same as Owner? No --
Operator Is Doing Business As -- --
Operator Address Same as Owner? No --
Operator Street Address P.O. Box 66100 P.O. Box 66100
Operator City Chicago Chicago
Operator State IL IL
Operator Country USA USA
Operator Zip code 60666 60666
Operator Code UALA UALA
Owner has at least one certificate -- --
Other Operator of large aircraft? -- --
Certified for Part 133 or 137 Operation -- --
Operator Certificate Number -- --
Indicates whether an air carrier operation was scheduled or not Scheduled Scheduled
Indicates Domestic or International Flight Domestic Domestic
Operator carrying Pax/Cargo/Mail Passenger Only Passenger Only
Type of Flying (Per_Bus / Primary) -- --
Second Pilot on Board Yes --
Departure Point Same as Event Yes Yes
Departure Airport Code ORD ORD
Departure City Chicago Chicago
Departure State IL IL
Departure Country USA USA
Departure Time -- --
Departure Time Zone CST CST
Destination Same as Local Flt -- --
Destination Airport Code IAD LGA
Destination City Washington New York
Destination State DC NY
Destination Country USA USA
Specific Phase of Flight Taxi - to takeoff Standing - engine(s) operating
Report sent to ICAO? -- --
Evacuation occurred -- --
Date of most recent change to record Nov 29 2007 9:48AM Nov 29 2007 9:48AM
User who most recently changed record SULP SULP
Since inspection or accident -- --
Event Location Runway Number and Location -- --
Runway Length -- --
Runway Width -- --
Sight Seeing flight No No
Air Medical Flight No No
Medical Flight -- --