Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
N. Sioux City, South Dakota 57049
Friday, September 22, 2006 9:58 CDT
NTSB Narrative Summary Released at Completion of Accident
The airplane was in cruise flight at 9,000 feet above mean sea level (msl) when it entered a descending left turn. The altitude data went into coast mode with the groundspeed being reported as 204 knots. Four seconds later, radar data shows the airplane turning to the right with a ground speed of 50 knots at an altitude of 7,400 feet. The airplane then enters another descending left turn. Radar data then shows the airplane at 5,200 feet with a ground speed of 29 knots. The altitude data then once again entered the coast mode. Witnesses reported seeing the airplane spinning as it descended out of the clouds. The airplane impacted the terrain in a relatively flat attitude. Post accident examination of the airframe, engines, and associated systems and components failed to reveal any preimpact failure/malfunction. Weather conditions at the time of the accident consisted of instrument meteorological conditions with rain. A weather study showed the airplane was operating in an area of instrument meteorological conditions with rain showers, and turbulence.
NTSB Probable Cause Narrative
The pilot's failure to maintain control of the airplane during cruise flight, and subsequent inadvertent flat spin from which he could not recover. Contributing to the accident were clouds, turbulence, and rain showers.
Event Information
| Type of Event | Accident |
| Event Date | 9/22/2006 |
| Event Day of the Week | Friday |
| Time of Event | 958 |
| Event Time Zone | Central Daylight Time |
| Event City | N. Sioux City |
| Event State | SOUTH DAKOTA |
| Event Country | -- |
| Zipcode of the event site | 57049 |
| Event Date Year | 2006 |
| Event Date Month | 9 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 423107N |
| Event Location Longitude | 0962935W |
| 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 | 9 |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 952 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 130 |
| Weather Observation Facility ID | SUX |
| Elevation of weather observation facility | 1098 |
| Distance of event from weather observation facility (units?) | 9 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 1300 |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | -- |
| 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) | 14 |
| Dew Point at event time (in degress fahrenheit) | 12 |
| Wind Direction (degrees magnetic) | 220 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 7 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29.3 |
| 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 | 1 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 23353 |
| NTSB Notification Source | FAA |
| NTSB Notification Date | Sep 22 2006 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Apr 30 2008 1:28PM |
| User who most recently changed record | NTSB\johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Rapid City, SD |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N4JV |
| NTSB Number | CHI06FA264 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Beech |
| Aircraft Model | BE-95-B55 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | TC-1583 |
| Certified Max Gross Weight | 5100 |
| 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 | 6 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Sep 1 2006 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 3292 |
| ELT Installed | Yes |
| ELT Activated | -- |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Midwest Garment, Inc |
| Aircraft Owner Street Address | 620 Cass St. |
| Aircraft Owner City | La Crosse |
| Aircraft Owner State | WI |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 54601 |
| Operator is an individual? | No |
| Operator Name | Michael F. Wille |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | La Crosse |
| Operator State | WI |
| Operator Country | USA |
| Operator Zip code | 54603 |
| 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) | Business |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | LBF |
| Departure City | NORTH PLATTE |
| Departure State | NE |
| Departure Country | USA |
| Departure Time | 853 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | LSA |
| Destination City | La Crosse |
| Destination State | WI |
| Destination Country | USA |
| Specific Phase of Flight | Descent - uncontrolled |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Mar 25 2008 8:57PM |
| User who most recently changed record | BOWL |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | NA |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |