Chicago O'hare Iap Airport
Aircraft Accident/Incident Report

Chicago, Illinois 60666
Saturday, December 4, 2010 21:21 CST

NTSB Narrative Summary Released at Completion of Accident

A regional jet was waiting to be marshaled into a gate. A Boeing 747 taxied behind it and the 747's right winglet contacted the regional jet's horizontal stabilizer, causing substantial damage. The first officer of the 747 thought that he had sufficient clearance to taxi by the regional jet. The first officer reported that the flight was his first out of that airport.

NTSB Probable Cause Narrative

The Boeing 747 first officer’s failure to maintain clearance from another airplane while taxiing due to his inadequate judgment of the distance between the airplanes.

Event Information

Type of Event Accident
Event Date 12/4/2010
Event Day of the Week Saturday
Time of Event 2121
Event Time Zone Central Standard Time
Event City Chicago
Event State ILLINOIS
Event Country --
Zipcode of the event site 60666
Event Date Year 2010
Event Date Month 12
MidAir Collision Indicator --
On Ground Collision occurred ? Yes
Event Location Latitude 415853N
Event Location Longitude 0875424W
Event Location Airport Chicago O'Hare IAP
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 0
Degrees magnetic from airport --
Airport Elevation 672
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 2051 Central Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID ORD
Elevation of weather observation facility 762
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CST
Lighting Conditions Night
Lowest Ceiling Height --
Lowest Non-Ceiling Height 3300
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) -3
Dew Point at event time (in degress fahrenheit) -6
Wind Direction (degrees magnetic) 320
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.2
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report KORD 050251Z 32010KT 10SM SCT033 M03/M06 A3020
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 37
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 29208
NTSB Notification Source FAA-AGL-ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Oct 31 2011 5:30PM
User who most recently changed record male
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft #2

Aircraft Registration Number N499MC N502MJ
NTSB Number CEN11LA099A CEN11LA099B
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? Yes Yes
Damage Minor Substantial
Aircraft Fire None None
Aircraft Explosion None None
Aircraft Manufacturer's Full Name BOEING BOMBARDIER INC
Aircraft Model 747-47UF CL-600-2C10
Aircraft Series Identifier -- --
Aircraft Serial Number 29260 10050
Certified Max Gross Weight 875000 75000
Aircraft Category Airplane Airplane
Aircraft Registration Class -- --
Aircraft is a homebuilt? No No
Flight Crew Seats -- 2
Cabin Crew Seats -- 66
Passenger Seats -- 2
Total number of seats on the aircraft 8 70
Number of Engines 4 2
Fixed gear or retractable gear Retractable Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness Continuous Airworthiness
Date of Last Inspection Oct 11 2010 12:00AM Dec 3 2010 12:00AM
Airframe hours since last inspection -- --
Airframe Hours 45113 20636
ELT Installed Yes Yes
ELT Activated No No
ELT Aided Location of Event Site No No
ELT Type Unknown C91-A
Aircraft Owner Name WELLS FARGO BANK NORTHWEST NA TRUSTEE WELLS FARGO BANK NORTHWEST NA TRUSTEE
Aircraft Owner Street Address 299 S MAIN ST # U1228-120 299 S MAIN ST FL 12
Aircraft Owner City SALT LAKE CITY SALT LAKE CITY
Aircraft Owner State UT UT
Aircraft Owner Country USA USA
Aircraft Owner Zipcode 84111-2263 84111-2263
Operator is an individual? No No
Operator Name ATLAS AIR INC MESA AIRLINES INC
Operator Same as Owner? No No
Operator Is Doing Business As -- --
Operator Address Same as Owner? No No
Operator Street Address -- --
Operator City Purchase Phoenix
Operator State NY AZ
Operator Country USA USA
Operator Zip code 10577 85008
Operator Code UIEA MASA
Owner has at least one certificate Yes - certificate holder Yes - certificate holder
Other Operator of large aircraft? No No
Certified for Part 133 or 137 Operation -- --
Operator Certificate Number UIEA784U MASA036A
Indicates whether an air carrier operation was scheduled or not Non-scheduled Scheduled
Indicates Domestic or International Flight Domestic Domestic
Operator carrying Pax/Cargo/Mail Cargo Passenger Only
Type of Flying (Per_Bus / Primary) -- --
Second Pilot on Board Yes Yes
Departure Point Same as Event Yes No
Departure Airport Code ORD CLT
Departure City Chicago Charlotte
Departure State IL NC
Departure Country USA USA
Departure Time -- 1905
Departure Time Zone CST CST
Destination Same as Local Flt -- crash at destination city
Destination Airport Code TOL ORD
Destination City Toledo Chicago
Destination State OH IL
Destination Country USA USA
Specific Phase of Flight -- --
Report sent to ICAO? -- --
Evacuation occurred -- --
Date of most recent change to record Oct 31 2011 5:30PM Oct 26 2011 5:30PM
User who most recently changed record male male
Since inspection or accident Time of Accident Time of Accident
Event Location Runway Number and Location N/A N/A
Runway Length -- --
Runway Width -- --
Sight Seeing flight No No
Air Medical Flight No No
Medical Flight -- --