Amateur-built DHC-1B-2S5 accident near Claremore, Oklahoma, March 27, 1987
On March 27, 1987 at about 11:49 pm local time, a amateur-built DHC-1B-2S5, registered N320HP, was destroyed in an accident near Claremore, Oklahoma (Robert W. Dean airport). It was a personal flight under general aviation rules (Part 91). 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
- March 27, 1987 · about 11:49 pm local time
- Place
- Claremore, Oklahoma · Robert W. Dean · map
- Type
- Accident
- Injuries
- 1 person was seriously injured.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built DHC-1B-2S5
- Registration
- N320HP · no longer on the register · serial 231
- Damage
- Destroyed
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
MUD DAUBERS PLUGGED THE FUEL TANK VENTS RESULTING IN FUEL STARVATION AND ENGINE FAILURE. THE ACFT RECEIVED SUBSTANTIAL DAMAGE DURING THE FORCED LNDG AND THE PLT WAS SERIOUSLY INJURED.
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; instrument: airplane
- Flight time: 1,122 hours in all; 5 in this make and model
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: rear
The aircraft
- Airframe total time: 3,360 hours
- Last inspection: annual inspection, July 1, 1986; 6 hours since
- Maximum gross weight: 1,930 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming O-540 (piston); 0 hours total
The flight
- Departed from: Claremore OK at 11:49 pm
- Destination: Claremore OK
- Flight plan: none
- Runway 0, 2,500 ft by 60 ft
Weather at the time
- Light: daylight
- 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.