Individually Owned: 150,657
Corporate Owned: 137,281
Columbia Regional Airport
Aircraft Accident/Incident Report
Columbia, Missouri 65201
Wednesday, July 20, 2011 13:25 CDT
NTSB Narrative Summary Released at Completion of Accident
The pilot was unable to obtain cockpit landing gear down-and-locked indications while on a visual approach to the destination airport. After repeated attempts to actuate the emergency landing gear extension system, he was still unable to obtain a gear down-and-locked indication. He overflew the airport so that air traffic control personnel could observe the landing gear position, which was observed as extended. The pilot then attempted a landing, during which the right main landing gear collapsed, and the airplane veered off the runway and hit a runway sign. During the repair of the landing gear system, several components exhibited a lack of lubrication, which resulted in the landing gear failing to lock when extended. Once the components were cleaned, lubricated, and adjusted, the landing gear functioned normally. The airplane and landing gear system were last inspected and repaired about 8 months prior to the accident during which adequate lubrication of the landing gear components should have been confirmed.
NTSB Probable Cause Narrative
The collapse of the right main landing gear during landing due to a lack of component lubrication, which resulted in the failure of the landing gear to lock once extended.
Event Information
| Type of Event | Accident |
| Event Date | 7/20/2011 |
| Event Day of the Week | Wednesday |
| Time of Event | 1325 |
| Event Time Zone | Central Daylight Time |
| Event City | Columbia |
| Event State | MISSOURI |
| Event Country | -- |
| Zipcode of the event site | 65201 |
| Event Date Year | 2011 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 384909N |
| Event Location Longitude | 0921318W |
| Event Location Airport | Columbia Regional Airport |
| Event Location Nearest Airport ID | COU |
| 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 | 889 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Pilot |
| Time of the weather observation | 1254 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | COU |
| Elevation of weather observation facility | 889 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| 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) | 34 |
| Dew Point at event time (in degress fahrenheit) | 23 |
| Wind Direction (degrees magnetic) | 250 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 9 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 20 |
| 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 | 1 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 30647 |
| NTSB Notification Source | -- |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Oct 23 2012 9:51AM |
| User who most recently changed record | galm |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N2056S |
| NTSB Number | CEN11LA494 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | No |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | CESSNA |
| Aircraft Model | T210L |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 21061023 |
| Certified Max Gross Weight | -- |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Nov 12 2010 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 11095 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Atlatl LLC |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Cape Girardeau |
| Aircraft Owner State | MO |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | -- |
| Operator is an individual? | No |
| Operator Name | Atlatl LLC |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | Cape Girardeau |
| Operator State | MO |
| Operator Country | USA |
| Operator Zip code | -- |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | -- |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | -- |
| Indicates Domestic or International Flight | -- |
| Operator carrying Pax/Cargo/Mail | -- |
| Type of Flying (Per_Bus / Primary) | Business |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | CGI |
| Departure City | Cape Girardeau |
| Departure State | MO |
| Departure Country | USA |
| Departure Time | 1208 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | COU |
| Destination City | Columbia |
| Destination State | MO |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jul 13 2012 3:34PM |
| User who most recently changed record | galm |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 20 |
| Runway Length | 6501 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |