Individually Owned: 150,657
Corporate Owned: 137,281
Monmouth Municipal Airport
Aircraft Accident/Incident Report
Monmouth, Illinois 61462
Thursday, August 25, 2011 12:45 CDT
NTSB Narrative Summary Released at Completion of Accident
The pilot reported that he was landing the tailwheel-equipped airplane when the airplane's tail inadvertently became airborne during the landing roll and that he was unable to regain control before the airplane nosed over. The airplane came to rest upside down on the runway centerline. The pilot reported that there were no preimpact mechanical malfunctions or failures that would have precluded the normal operation of the airplane. Although the pilot attributed the cause of the accident to his inadvertently landing with a tailwind, a review of historical wind data indicated that the prevailing wind would have resulted in a left crosswind of about 5 knots and a negligible tailwind component.
NTSB Probable Cause Narrative
The pilot's loss of airplane control during the landing roll.
Event Information
| Type of Event | Accident |
| Event Date | 8/25/2011 |
| Event Day of the Week | Thursday |
| Time of Event | 1245 |
| Event Time Zone | Central Daylight Time |
| Event City | Monmouth |
| Event State | ILLINOIS |
| Event Country | -- |
| Zipcode of the event site | 61462 |
| Event Date Year | 2011 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 405547N |
| Event Location Longitude | 0903752W |
| Event Location Airport | Monmouth Municipal Airport |
| Event Location Nearest Airport ID | C66 |
| 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 | 753 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1235 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 87 |
| Weather Observation Facility ID | KGBG |
| Elevation of weather observation facility | 764 |
| Distance of event from weather observation facility (units?) | 9 |
| 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) | 28 |
| Dew Point at event time (in degress fahrenheit) | 11 |
| Wind Direction (degrees magnetic) | 330 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 7 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.04 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | KGBG 251655Z AUTO 28006KT 10SM CLR 28/13 A3004 RMK |
| 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) | 29627 |
| NTSB Notification Source | Federal Aviation Administratio |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Feb 8 2012 10:38AM |
| User who most recently changed record | bakd |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N72688 |
| NTSB Number | CEN11LA595 |
| 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 | 140 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 9864 |
| Certified Max Gross Weight | 1450 |
| 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 | 2 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | Aug 13 2011 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 2806 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | Unknown |
| Aircraft Owner Name | Thomas R. Arthur |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Monmouth |
| Aircraft Owner State | IL |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 61462-1962 |
| Operator is an individual? | Yes |
| Operator Name | Thomas R. Arthur |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | Monmouth |
| Operator State | IL |
| Operator Country | USA |
| Operator Zip code | 61462-1962 |
| 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) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | C66 |
| Departure City | Monmouth |
| Departure State | IL |
| Departure Country | USA |
| Departure Time | 1200 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | C66 |
| Destination City | Monmouth |
| Destination State | IL |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 4 2012 11:12PM |
| User who most recently changed record | foxt |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | 02 |
| Runway Length | 2899 |
| Runway Width | 60 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |