Amateur-built QUICKSILVER MX accident near Williston, Florida, June 21, 1983
On June 21, 1983 at about 11:02 pm local time, a amateur-built QUICKSILVER MX (ultralight), registered UNREG, was destroyed in an accident near Williston, Florida. It was a personal flight under ultralight rules (Part 103). 1 person was killed. 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 21, 1983 · about 11:02 pm local time
- Place
- Williston, Florida · map
- Type
- Accident
- Injuries
- 1 person was killed.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built QUICKSILVER MX QUICKSILVE
- Registration
- UNREG · no longer on the register · serial 5303
- Damage
- Destroyed
- Flight
- Personal flight · ultralight rules (Part 103)
The NTSB's narrative final · quoted from the NTSB record
THE PLT OF THE ULTRALIGHT VEHICLE TOOK OFF FROM AN OPEN FIELD NEAR HIS RESIDENCE. WITNESSES NEAR THE CRASH SITE STATED THAT THEY OBSERVED THE ULTRALIGHT APPROACH AN OPEN FIELD FOR A LANDING. AS THE PLT WAS IN A LEFT DESCENDING TURN TO THE FIELD, THE ULTRALIGHT COLLIDED WITH A POWER LINE. AFTER THE VEHICLE HAD HIT THE POWER LINE, THE PILOT ADDED POWER TO GO AROUND. HOWEVER, A BROKEN WIRE HAD WRAPPED AROUND A WING, AND WHEN THE WIRE HAD REACHED ITS MAXIMUM LENGTH, THE VEHICLE'S FORWARD MOVEMENT WAS STOPPED & IT CRASHED STRAIGHT DOWN.
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: 200 hours in all; 200 in this make and model; 50 in the last 90 days; 200 as pilot in command
- Medical certificate: Unknown
- Seat: unk
The aircraft
- Airframe total time: 15 hours
- Last inspection: inspection type not recorded
- Maximum gross weight: 200 lb
- Seats: 1
- Landing gear: fixed
- Engine: Cuyuna 430 (piston); 0 hours total
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 200° at 5 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 82°F (28°C), dew point 79°F (26°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.