Individually Owned: 150,657
Corporate Owned: 137,281
O'hare Intl Airport
Aircraft Accident/Incident Report
Chicago, Illinois 60666
Monday, September 23, 1991 13:44 CDT
NTSB Narrative Summary Released at Completion of Accident
DURING AFTER LANDING GROUND OPERATIONS, THE AIRPLANE STRUCK A PARKED SEMI-TRAILER. THE SEMI HAD BEEN ESCORTED FROM A CONSTRUCTION SITE ON THE AIRPORT BY A CONTRACTED ESCORT SERVICE. THE ESCORT VEHICLE LED THE SEMI ALONG THE SHOULDER OF THE TAXIWAY INSTEAD OF FOLLOWING ESTABLISHED ROUTES. THE SEMI STRUCK A CONCRETE BUMPER AND THE DRIVER STOPPED TO ASSESS POSSIBLE DAMAGE. HE ESTIMATED THE SEMI-TRAILER WAS ABOUT 100 FEET FROM THE EDGE OF THE TAXIWAY WHEN THE AIRPLANE'S LEFT WING MADE CONTACT. THE FLIGHT CREW REPORTED THEY BELIEVED THEY HAD ADEQUATE CLEARANCE TO TAXI PAST THE PARKED TRAILER UNTIL JUST PRIOR TO IMPACT.
NTSB Probable Cause Narrative
THE FLIGHT CREW'S FAILURE TO MAINTAIN ADEQUATE CLEARANCE FROM OBSTACLES DURING GROUND OPERATIONS. A RELATED FACTOR IS THE FAILURE OF THE DRIVERS OF THE ESCORT VEHICLE AND THE SEMI TRAILER TO FOLLOW ESTABLISHED PROCEDURES AND DIRECTIVES.
Event Information
| Type of Event | Accident |
| Event Date | 9/23/1991 |
| Event Day of the Week | Monday |
| Time of Event | 1344 |
| Event Time Zone | Central Daylight Time |
| Event City | CHICAGO |
| Event State | ILLINOIS |
| Event Country | -- |
| Zipcode of the event site | 60666 |
| Event Date Year | 1991 |
| Event Date Month | 9 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | O'HARE INTL |
| 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 | 0 |
| Airport Elevation | -- |
| Weather Briefing Completeness | Full |
| Investigator's weather source | Witness |
| Time of the weather observation | 0 |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | |
| Elevation of weather observation facility | 0 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 30 |
| Air Temperature at event time (in degrees celsius) | 20 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 300 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 10 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | -- |
| Density Altitude (feet) | 0 |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 80 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1608 |
| NTSB Notification Source | -- |
| NTSB Notification Date | -- |
| NTSB Notification Time | 0 |
| Fiche Number and/or location -used to find docket information | 45256 |
| Date of most recent change to record | Dec 18 2002 11:28AM |
| User who most recently changed record | NTSB\GIUV |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N442AA |
| NTSB Number | CHI91LA301 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 121: Air Carrier |
| Type of Flight Plan filed | Unknown |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | MCDONNELL DOUGLAS |
| Aircraft Model | DC-9-82 |
| Aircraft Series Identifier | DC-9-82 |
| Aircraft Serial Number | 49468 |
| Certified Max Gross Weight | 149500 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | -- |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | AAIP |
| Date of Last Inspection | Jan 2 2000 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 12300 |
| ELT Installed | No |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | FIRST NATIONAL BANK OF BOSTON |
| Aircraft Owner Street Address | 100 FEDERAL STREET |
| Aircraft Owner City | BOSTON |
| Aircraft Owner State | MA |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 02110 |
| Operator is an individual? | -- |
| Operator Name | AMERICAN AIRLINES |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | DFW INTERNATIONAL AIRPORT |
| Operator City | DALLAS/FT.WORTH |
| Operator State | TX |
| Operator Country | |
| Operator Zip code | 75261 |
| Operator Code | AALA |
| Owner has at least one certificate | Yes - certificate holder |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Unknown |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | Scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | Passenger/Cargo |
| Type of Flying (Per_Bus / Primary) | Unknown |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | SEA |
| Departure City | SEATTLE |
| Departure State | WA |
| Departure Country | |
| Departure Time | 800 |
| Departure Time Zone | PDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | Taxi |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:30AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 0 |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |