Amateur-built ACRO-SPORT II accident near Columbus, Kansas, June 29, 1991
On June 29, 1991 at about 5:10 pm local time, a amateur-built ACRO-SPORT II, registered N391KS, was substantially damaged in an accident near Columbus, Kansas. 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).
The NTSB's probable cause their words, unchanged
A LOSS OF ENGINE POWER FOR UNDETERMINED REASONS. A FACTOR ASSOCIATED WITH THE ACCIDENT IS SOFT TERRAIN IN THE FORCED LANDING AREA.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- June 29, 1991 · about 5:10 pm local time
- Place
- Columbus, Kansas · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built ACRO-SPORT II ACRO-SPORT
- Registration
- N391KS · registry record · serial 391
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE PILOT REPORTED THAT WHILE OVERTAKING ANOTHER AIRPLANE INFLIGHT HE CLOSED THE THROTTLE. WHEN HE ADVANCED THE THROTTLE THE ENGINE DID NOT RESPOND. THE AIRPLANE WAS DAMAGED DURING A FORCED LANDING TO A 'LOOSE WORKED BEAN FIELD.' POST ACCIDENT INSPECTION OF THE AIRPLANE AND ENGINE FAILED TO REVEAL THE REASON FOR THE LOSS OF POWER.
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: 200 hours in all; 10 in this make and model; 100 in the last 90 days; 150 as pilot in command
- Medical certificate: Class 3 (valid medical--no waivers/lim.)
- Seat: frt
The aircraft
- Last inspection: 100-hour inspection, May 20, 1991; 10 hours since
- Maximum gross weight: 1,520 lb
- Seats: 1
- Landing gear: fixed
- Engine: Avco Lycoming O-320-D2B (piston); 0 hours total
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Visibility: 1 statute miles
- Sky: clear
- 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.
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.