Aerotrike Spirit accident near Vinland Valley, Kansas, August 15, 2008
On August 15, 2008 at about 6:25 pm local time, a Aerotrike Spirit (weight-shift aircraft), registered N226MB, was substantially damaged in an accident during initial climb near Vinland Valley, Kansas. It was an instructional flight under general aviation rules (Part 91). 1 person was seriously injured; 1 other was unhurt. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The flight instructor's failure to maintain control of the sport aircraft on takeoff.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 15, 2008 · about 6:25 pm local time
- Place
- Vinland Valley, Kansas · map
- Type
- Accident
- Injuries
- 1 person was seriously injured; 1 other was unhurt.
- Weather
- visual conditions (good weather)
- Aircraft
- Aerotrike Spirit
- Registration
- N226MB · registry record · serial 226
- Damage
- Substantial damage
- Flight
- Instructional flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The certified flight instructor and student pilot had just departed in the flight instructor's experimental light sport (weight-shift) aircraft when it began to drift to the left of the runway centerline. The flight instructor, who was also on the controls with the student pilot, reported that there was a three mile per hour crosswind from the right, so they both moved the bar to the left to correct for the wind and positioned the aircraft back to the right and over the runway centerline. However, once the correction was made, the aircraft continued to drift to the right. The instructor stated that he was telling the student to move the control bar to the right, and the student said he was trying but he was unable to lift the wing. The instructor, who was still on the controls, said that he was also trying to lift the wing but to no avail and the aircraft continued to bank sharply to the right. When the airplane's bank angle reached approximately 45 degrees, the instructor realized that the aircraft was going to stall so he pushed the control bar forward. The aircraft hit the ground with the right wing and came to rest about 300 feet to the right of the runway in a plowed field. Examination of the airplane revealed the wing and frame sustained substantial damage. The propeller was also damaged. No pre mishap discrepancies were noted with the airframe or the engine.
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
What happened, in order
- Loss of control in flight during initial climb defining event
- Collision with terrain or object (not controlled flight into terrain) during uncontrolled descent
The NTSB's findings
- cause Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
Flight instructor
- Certificate: flight instructor, sport pilot
- Ratings: single-engine land; instructor: sport pilot
- Flight time: 287 hours in all; 214 in this make and model; 17 in the last 90 days; 17 in the last 30 days
- Medical certificate: Sport Pilot
Dual student
- Certificate: student
- Flight time: 14 hours in all; 1 in this make and model
- Medical certificate: Sport Pilot
The aircraft
- Landing gear: fixed
- Engine: Rotax UL503DCDI (piston); 0 hours total
The flight
- Departed from: K64 Vinland Valley KS
- Flight plan: none
- A second pilot was aboard
Weather at the time
- Light: daylight
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 | |||
| Passengers | 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.
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.