Amateur-built FP-101 accident near Mankato, Minnesota, September 16, 1984
On September 16, 1984 at about 11:00 pm local time, a amateur-built FP-101 (ultralight), registered UNREG, was destroyed in an accident near Mankato, Minnesota (Mankato Municipal airport). It was a personal flight under ultralight rules (Part 103). 1 person was seriously injured. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 16, 1984 · about 11:00 pm local time
- Place
- Mankato, Minnesota · Mankato Municipal · map
- Type
- Accident
- Injuries
- 1 person was seriously injured.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built FP-101
- Registration
- UNREG · no longer on the register · serial 319
- Damage
- Destroyed
- Flight
- Personal flight · ultralight rules (Part 103)
The NTSB's narrative final · quoted from the NTSB record
THE PILOT OF THE ULTRA-LIGHT STATED THAT HE MADE A TAKE-OFF AND CLIMBED TO ABOUT 30 FT THEN ATTEMPTED A RIGHT TURN. HE SAID THE AIRCRAFT STALLED AND CRASHED INTO THE SOYBEAN FIELD FIELD. THE PILOT REPORTED 12 PREVIOUS FLIGHTS BUT NO PILOTS CERTIFICATE.
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
- Ratings: single-engine land
- Medical certificate: Unknown
- Seat: unk
The aircraft
- Last inspection: inspection type not recorded
- Landing gear: fixed
- Engine: Cuyuna UL-202 (type not recorded); 0 hours total
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Visibility: 7 statute miles
- Sky: clear
- Temperature: 64°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.
Other NTSB records under UNREG the same tail number, which may have belonged to a different aircraft at the time
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.