Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Knox City, Missouri 63446
Monday, April 23, 2007 15:35 CDT
NTSB Narrative Summary Released at Completion of Accident
Witnesses reported seeing and hearing the airplane prior to its impact with the terrain. Several of these witnesses reported hearing the engine "sputtering" or "popping." A post crash fire engulfed the airplane, consuming all but the forward four feet of the fuselage. Control system integrity could not be conclusively determined; however, no evidence of a pre-impact failure was found. The engine was able to be rotated but damage from the post crash fire precluded determination as to the reason for the presumed loss of engine power. The terrain where the accident occurred was rising with vegetation about 8 to 12 inches tall. The ground scars and aircraft damage indicate that the bulkhead located just aft of the nose landing gear dug in during the forced landing resulting in the airplane nosing over.
NTSB Probable Cause Narrative
The loss of engine power for an undetermined reason. Contributing to the accident was the unsuitable terrain that was encountered by the pilot during the forced landing.
Event Information
| Type of Event | Accident |
| Event Date | 4/23/2007 |
| Event Day of the Week | Monday |
| Time of Event | 1535 |
| Event Time Zone | Central Daylight Time |
| Event City | Knox City |
| Event State | MISSOURI |
| Event Country | -- |
| Zipcode of the event site | 63446 |
| Event Date Year | 2007 |
| Event Date Month | 4 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 401231N |
| Event Location Longitude | 0920028W |
| Event Location Airport | -- |
| Event Location Nearest Airport ID | -- |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1555 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 270 |
| Weather Observation Facility ID | IRK |
| Elevation of weather observation facility | 966 |
| Distance of event from weather observation facility (units?) | 23 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 3700 |
| Sky/Lowest/Cloud Conditions | Scattered |
| 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) | 19 |
| Dew Point at event time (in degress fahrenheit) | 9 |
| Wind Direction (degrees magnetic) | 340 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 14 |
| Altimeter Setting at event time (in. Hg) | 30.04 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Fatal |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | 2 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | 1 |
| Injury Total All | 3 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 24598 |
| NTSB Notification Source | FAA |
| NTSB Notification Date | Apr 23 2007 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Dec 16 2008 10:48AM |
| User who most recently changed record | johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | St. Louis, MO |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N40SW |
| NTSB Number | CHI07LA115 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Destroyed |
| Aircraft Fire | Ground |
| Aircraft Explosion | Ground |
| Aircraft Manufacturer's Full Name | Bird |
| Aircraft Model | Seawind 3000 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 1 |
| Certified Max Gross Weight | 3400 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | Yes |
| 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 | Retractable |
| Aircraft, Type of Last Inspection | Unknown |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | -- |
| ELT Activated | -- |
| ELT Aided Location of Event Site | -- |
| ELT Type | -- |
| Aircraft Owner Name | 1271 Seawinders LLC |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Willmar |
| Aircraft Owner State | MN |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 56201 |
| Operator is an individual? | No |
| Operator Name | Gene E. Underland |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | Montevideo |
| Operator State | MN |
| Operator Country | USA |
| Operator Zip code | 56288 |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | -- |
| 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 | No |
| Departure Airport Code | MAW |
| Departure City | MALDEN |
| Departure State | MO |
| Departure Country | USA |
| Departure Time | -- |
| Departure Time Zone | -- |
| Destination Same as Local Flt | -- |
| Destination Airport Code | ILL |
| Destination City | WILLMAR |
| Destination State | MN |
| Destination Country | USA |
| Specific Phase of Flight | Emergency landing |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | -- |
| User who most recently changed record | -- |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | N/A |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |