Amateur-built STARDUSTER TOO accident near Roundup, Montana, June 28, 1986
On June 28, 1986 at about 3:35 pm local time, a amateur-built STARDUSTER TOO, registered N159MK, was substantially damaged in an accident near Roundup, Montana (Roundup Airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. 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
- June 28, 1986 · about 3:35 pm local time
- Place
- Roundup, Montana · Roundup Airport · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built STARDUSTER TOO STARDUSTER
- Registration
- N159MK · registry record · serial MK-2
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
DURING THE TELEPHONE INTERVIEW, THE PLT STATED THE ACFT LANDED HARD, COLLAPSING THE RIGHT MAIN GEAR & BROKE THE RIGHT WING SPAR.
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: 921 hours in all; 147 in this make and model; 23 in the last 90 days; 775 as pilot in command
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 147 hours
- Last inspection: annual inspection, August 26, 1985; 47 hours since
- Maximum gross weight: 1,900 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming O-435-L (piston); 0 hours total
The flight
- Departed from: GTF Great Falls MT at 1:35 pm
- Flight plan: VFR
- Runway 6, 5,100 ft by 75 ft
Weather at the time
- Light: daylight
- Visibility: 40 statute miles
- Sky: clear
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| 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.
Other NTSB records under N159MK 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.