Amateur-built 107-11 accident near Leavenworth, Washington, August 4, 1990
On August 4, 1990 at about 5:00 pm local time, a amateur-built 107-11 (helicopter), registered N6672D, was destroyed in an accident near Leavenworth, Washington. It was a public-use flight under public-use (government) rules. 2 people had minor injuries. The weather was conditions the NTSB did not record.
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 12, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 4, 1990 · about 5:00 pm local time · cases in 1990
- Place
- Leavenworth, Washington · map
- Type
- Accident
- Injuries
- 2 people had minor injuries.
- Weather
- conditions the NTSB did not record
- Aircraft
- Amateur-built 107-11
- Registration
- N6672D · registry record · serial 2
- Damage
- Destroyed
- Flight
- Public-use flight · public-use (government) rules
The factual record from the NTSB's investigation tables, in plain English
The aircraft
- Last inspection: inspection type not recorded
- Maximum gross weight: 13,500 lb
- Seats: 20
- Landing gear: fixed
- Not recorded
The flight
- Flight plan: not recorded
- Runway 0
Weather at the time
- Light: daylight
- Sky: not recorded; not recorded
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 2 |
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.
Connections how this case links to the rest of the register
- N6672D on the register today · the tail number may have moved to another aircraft since
- Accidents and incidents in Washington 2,709 since 1982 · 360 in the last ten years
- Washington 10,570 aircraft registered
The whole map of how records connect · these connections as data: /graph/accident/SEA90TL%2307.json.
The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.
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 does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.