Individually Owned: 150,657
Corporate Owned: 137,281
Chicago Midway Airport
Aircraft Accident/Incident Report
Chicago, Illinois 60638
Thursday, December 1, 2011 9:07 CDT
NTSB Narrative Summary Released at Completion of Accident
A runway incursion occurred when a Boeing 737-700 (B737) was cleared by a tower local controller to cross a runway immediately after a Learjet 45 was cleared for takeoff on the same runway. The first officer of the B737 saw the departing Learjet and warned the captain, who stopped the B737 short of the runway edge. Air traffic control personnel did not take any actions to resolve the conflict between the two airplanes. Recorded data indicated that the Learjet passed within 287 feet laterally and 62 feet vertically of the B737.
NTSB Probable Cause Narrative
The tower local controller did not ensure that the runway was clear of conflict before directing the B737 to cross the runway, and other air traffic control personnel did not effectively intervene when the separation between the two airplanes became questionable.
Event Information
| Type of Event | Incident |
| Event Date | 12/1/2011 |
| Event Day of the Week | Thursday |
| Time of Event | 907 |
| Event Time Zone | Central Daylight Time |
| Event City | Chicago |
| Event State | ILLINOIS |
| Event Country | -- |
| Zipcode of the event site | 60638 |
| Event Date Year | 2011 |
| Event Date Month | 12 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | Chicago Midway |
| Event Location Nearest Airport ID | MDW |
| 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 | 620 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 851 Central Standard Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | MDW |
| Elevation of weather observation facility | 620 |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | CST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 20000 |
| Lowest Non-Ceiling Height | 15000 |
| 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) | 1 |
| Dew Point at event time (in degress fahrenheit) | -4 |
| Wind Direction (degrees magnetic) | 180 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 4 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.26 |
| 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 | 85 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 30492 |
| 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 | Sep 17 2012 1:44PM |
| User who most recently changed record | duns |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
||
|---|---|---|
Aircraft #1 |
Aircraft #2 |
|
| Aircraft Registration Number | -- | -- |
| NTSB Number | OPS12IA167A | OPS12IA167B |
| Missing Aircraft Indicator | -- | -- |
| Federal Aviation Reg. Part | -- | -- |
| Type of Flight Plan filed | IFR | IFR |
| Flight plan Was Activated? | Yes | -- |
| Damage | None | None |
| Aircraft Fire | None | None |
| Aircraft Explosion | None | None |
| Aircraft Manufacturer's Full Name | LEARJET INC | BOEING |
| Aircraft Model | 45 | 737-7H4 |
| Aircraft Series Identifier | -- | -- |
| Aircraft Serial Number | 238 | 33715 |
| Certified Max Gross Weight | -- | -- |
| 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 | 12 | 140 |
| Number of Engines | 2 | 2 |
| Fixed gear or retractable gear | Retractable | Retractable |
| Aircraft, Type of Last Inspection | -- | -- |
| Date of Last Inspection | -- | -- |
| Airframe hours since last inspection | -- | -- |
| Airframe Hours | -- | -- |
| ELT Installed | Unknown | Unknown |
| ELT Activated | No | No |
| ELT Aided Location of Event Site | Unknown | Unknown |
| ELT Type | Unknown | Unknown |
| Aircraft Owner Name | -- | -- |
| Aircraft Owner Street Address | 2199 INNERBELT BUSINESS CENTER DR | 2702 LOVE FIELD DR HDQ-4GC |
| Aircraft Owner City | SAINT LOUIS | DALLAS |
| Aircraft Owner State | MO | TX |
| Aircraft Owner Country | USA | USA |
| Aircraft Owner Zipcode | 63114-5721 | 75235-1611 |
| Operator is an individual? | No | No |
| Operator Name | -- | -- |
| Operator Same as Owner? | Yes | 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 | -- | SWAA |
| 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 | -- | SWAA304A |
| Indicates whether an air carrier operation was scheduled or not | -- | Scheduled |
| Indicates Domestic or International Flight | -- | Domestic |
| Operator carrying Pax/Cargo/Mail | -- | Passenger Only |
| Type of Flying (Per_Bus / Primary) | Unknown | -- |
| Second Pilot on Board | Yes | Yes |
| Departure Point Same as Event | Yes | No |
| Departure Airport Code | -- | MSP |
| Departure City | Chicago | Minneapolis-St |
| Departure State | IL | MN |
| Departure Country | USA | USA |
| Departure Time | -- | 802 |
| Departure Time Zone | CDT | CST |
| Destination Same as Local Flt | -- | crash at destination city |
| Destination Airport Code | SAV | -- |
| Destination City | Savannah | Chicago |
| Destination State | GA | IL |
| Destination Country | USA | USA |
| Specific Phase of Flight | -- | -- |
| Report sent to ICAO? | -- | -- |
| Evacuation occurred | -- | -- |
| Date of most recent change to record | Feb 15 2012 12:25PM | Feb 13 2012 1:08PM |
| User who most recently changed record | bard | bard |
| Since inspection or accident | -- | -- |
| Event Location Runway Number and Location | 31R | 31C |
| Runway Length | 5141 | 6522 |
| Runway Width | 150 | 150 |
| Sight Seeing flight | -- | No |
| Air Medical Flight | No | No |
| Medical Flight | -- | -- |