Weedhopper 1 accident near Woodinville, Washington, March 15, 1983
On March 15, 1983 at about 9:00 pm local time, a Weedhopper 1 (ultralight), registered UNREG, was substantially damaged in an accident near Woodinville, Washington. 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
- March 15, 1983 · about 9:00 pm local time
- Place
- Woodinville, Washington · map
- Type
- Accident
- Injuries
- 1 person was seriously injured.
- Weather
- visual conditions (good weather)
- Aircraft
- Weedhopper 1
- Registration
- UNREG · no longer on the register
- Damage
- Substantial damage
- Flight
- Personal flight · ultralight rules (Part 103)
The NTSB's narrative final · quoted from the NTSB record
THE PLT TOOK OFF IN AN ULTRALIGHT VEHICLE FROM A SOD FIELD. WITNESSES OBSERVED THAT THE RIGHT WING TIP WAS DROPPED DURING THE TAKEOFF. AT APRX 200 FT AGL, THE VEHICLE ENTERED A RIGHT SPIRAL & IMPACTED THE GROUND. THE LOWER, RIGHT WING, LEFT/DRAG STRUT PIN WAS NOT LOCATED AT THE CRASH SCENE. REPORTEDLY, THE PLT HAD COMPLETED FINAL ASSEMBLY OF THE ACFT PRIOR TO THE FLT & THE OWNER HAD CHECKED THAT ALL FITTINGS WERE IN PLACE BEFORE TAKEOFF. THE VEHICLE HAD ACCUMULATED APRX 200 HRS OF OPERATION.
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
- Flight time: 150 hours in all; 150 in this make and model
- Medical certificate: Unknown
- Seat: ctr
The aircraft
- Airframe total time: 200 hours
- Last inspection: inspection type not recorded
- Maximum gross weight: 254 lb
- Seats: 1
- Landing gear: fixed
- Engine: Zenoah 1 (piston); 0 hours total
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Visibility: 20 statute miles
- Sky: clear
- Temperature: 50°F (10°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.