Individually Owned: 150,657
Corporate Owned: 137,281
Chicago O'hare International Airport
Aircraft Accident/Incident Report
Chicago, Illinois
Monday, June 1, 2009 12:16 CDT
NTSB Narrative Summary Released at Completion of Accident
While on approach to Chicago-O'Hare International Airport, American Airlines flight 879 (AAL 879) was being radar-vectored to the final approach course for runway 28 and American Airlines flight 93 (AAL 93) was on a straight-in approach to runway 27L. Both aircraft were under control of Chicago Terminal Radar Approach Control. Because of an air traffic control oversight, AAL 879 overshot the final approach course for runway 28 and continued northbound, conflicting with AAL 93 on the runway 27L final. According to preliminary Federal Aviation Administration data, lateral separation decreased to 0.35 nautical mile and vertical separation was 0 feet before the conflict was resolved. There were no injuries or damage reported as a result of the incident, which occurred in visual meteorological conditions, with 10 statute miles of visibility and a 5500-foot ceiling.
NTSB Probable Cause Narrative
The Chicago TRACON West Arrival controller's omission of a required clearance, resulting in AAL 879 overshooting the final for runway 28 and losing separation with AAL 93.
Event Information
| Type of Event | Incident |
| Event Date | 6/1/2009 |
| Event Day of the Week | Monday |
| Time of Event | 1216 |
| Event Time Zone | Central Daylight Time |
| Event City | Chicago |
| Event State | ILLINOIS |
| Event Country | -- |
| Zipcode of the event site | -- |
| Event Date Year | 2009 |
| Event Date Month | 6 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 415902N |
| Event Location Longitude | 0873949W |
| Event Location Airport | Chicago O'Hare International |
| Event Location Nearest Airport ID | ORD |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 9 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 672 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1151 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 90 |
| Weather Observation Facility ID | ORD |
| Elevation of weather observation facility | 672 |
| Distance of event from weather observation facility (units?) | 8 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 20000 |
| Lowest Non-Ceiling Height | 5000 |
| Sky/Lowest/Cloud Conditions | Few |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 22 |
| Dew Point at event time (in degress fahrenheit) | 16 |
| Wind Direction (degrees magnetic) | 230 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 12 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.83 |
| 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 | 324 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 26396 |
| NTSB Notification Source | FAA |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Dec 3 2009 2:13PM |
| User who most recently changed record | rows |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
||
|---|---|---|
Aircraft #1 |
Aircraft #2 |
|
| Aircraft Registration Number | -- | -- |
| NTSB Number | OPS09IA006A | OPS09IA006B |
| Missing Aircraft Indicator | -- | -- |
| Federal Aviation Reg. Part | -- | -- |
| Type of Flight Plan filed | IFR | IFR |
| Flight plan Was Activated? | -- | -- |
| Damage | None | None |
| Aircraft Fire | None | None |
| Aircraft Explosion | None | None |
| Aircraft Manufacturer's Full Name | MCDONNELL DOUGLAS | BOEING |
| Aircraft Model | MD80 | 767 |
| Aircraft Series Identifier | -- | -- |
| Aircraft Serial Number | -- | -- |
| Certified Max Gross Weight | -- | -- |
| Aircraft Category | Airplane | Airplane |
| Aircraft Registration Class | -- | -- |
| Aircraft is a homebuilt? | No | No |
| Flight Crew Seats | 2 | -- |
| Cabin Crew Seats | -- | -- |
| Passenger Seats | -- | -- |
| Total number of seats on the aircraft | -- | -- |
| Number of Engines | 2 | 2 |
| Fixed gear or retractable gear | Fixed | Fixed |
| Aircraft, Type of Last Inspection | -- | -- |
| Date of Last Inspection | -- | -- |
| Airframe hours since last inspection | -- | -- |
| Airframe Hours | -- | -- |
| ELT Installed | Unknown | Unknown |
| ELT Activated | Unknown | Unknown |
| ELT Aided Location of Event Site | Unknown | Unknown |
| ELT Type | -- | -- |
| Aircraft Owner Name | -- | -- |
| Aircraft Owner Street Address | -- | -- |
| Aircraft Owner City | -- | -- |
| Aircraft Owner State | -- | -- |
| Aircraft Owner Country | USA | USA |
| Aircraft Owner Zipcode | -- | -- |
| Operator is an individual? | No | No |
| Operator Name | -- | -- |
| Operator Same as Owner? | No | No |
| Operator Is Doing Business As | -- | -- |
| Operator Address Same as Owner? | No | No |
| Operator Street Address | -- | -- |
| Operator City | -- | -- |
| Operator State | -- | -- |
| Operator Country | USA | USA |
| Operator Zip code | -- | -- |
| Operator Code | AALA | AALA |
| 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 | AALA025A | AALA025A |
| Indicates whether an air carrier operation was scheduled or not | Scheduled | Scheduled |
| Indicates Domestic or International Flight | Domestic | International |
| Operator carrying Pax/Cargo/Mail | Passenger Only | Passenger Only |
| Type of Flying (Per_Bus / Primary) | -- | -- |
| Second Pilot on Board | Yes | No |
| Departure Point Same as Event | No | No |
| Departure Airport Code | STL | EIDW |
| Departure City | St Louis | Dublin |
| Departure State | MO | -- |
| Departure Country | USA | EI |
| Departure Time | -- | -- |
| Departure Time Zone | -- | -- |
| Destination Same as Local Flt | crash at destination city | crash at destination city |
| Destination Airport Code | ORD | ORD |
| Destination City | Chicago | Chicago |
| Destination State | IL | IL |
| Destination Country | USA | USA |
| Specific Phase of Flight | -- | -- |
| Report sent to ICAO? | -- | -- |
| Evacuation occurred | -- | -- |
| Date of most recent change to record | Nov 24 2009 4:08PM | Nov 24 2009 4:08PM |
| User who most recently changed record | duns | duns |
| Since inspection or accident | -- | -- |
| Event Location Runway Number and Location | N/A | -- |
| Runway Length | -- | -- |
| Runway Width | -- | -- |
| Sight Seeing flight | No | -- |
| Air Medical Flight | No | No |
| Medical Flight | -- | -- |