Amateur-built KOLB MARK III CLSC accident near Lakeville, Minnesota, August 15, 2006
On August 15, 2006 at about 10:20 pm local time, a amateur-built KOLB MARK III CLSC, registered N232S, was substantially damaged in an accident near Lakeville, Minnesota. It was a personal flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).
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The NTSB's probable cause their words, unchanged
The pilot's failure to maintain clearance from the crops which resulted in the subsequent impact with the ground.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 15, 2006 · about 10:20 pm local time
- Place
- Lakeville, Minnesota · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built KOLB MARK III CLSC
- Registration
- N232S · registry record · serial M1121
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The amateur-built airplane was damaged during a practice emergency landing approach when it impacted crops and the ground. The pilot reported that he was practicing a simulated emergency approach and that he got too low during the approach. He said that when he applied engine power the nose of the airplane pitched down due to the high pusher configuration of the engine. He said that he was unable to prevent the airplane from striking the crops and the ground.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: private
- Ratings: single-engine land
- Flight time: 300 hours in all; 120 in this make and model
- Medical certificate: Class 3
- Seat: left
- Injury: no injuries
The aircraft
- Landing gear: fixed
- Engine: Rotax unk (piston); 0 hours total
The flight
- Departed from: LVN Lakeville MN
- Flight plan: none
Weather at the time
- Light: daylight
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The documents and photographs are the NTSB's docket, the folder of records gathered during the investigation, shown as the NTSB released them (the NTSB redacts some personal details first) and listed under the NTSB's own titles. This site's own text never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number CHI06CA233.