Quicksilver Manufacturing GT-500 accident near Newberg, Oregon, August 12, 2007
On August 12, 2007 at about 4:45 pm local time, a Quicksilver Manufacturing GT-500, registered N8058J, was substantially damaged in an accident near Newberg, Oregon (Sportsman Airpark 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 pilot's failure to maintain airspeed while maneuvering, which resulted in an inadvertent stall and uncontrolled descent to terrain impact. A contributing factor was the pilot's lack of certification.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 12, 2007 · about 4:45 pm local time
- Place
- Newberg, Oregon · Sportsman Airpark · map
- Type
- Accident
- Injuries
- 1 person was seriously injured.
- Weather
- visual conditions (good weather)
- Aircraft
- Quicksilver Manufacturing GT-500
- Registration
- N8058J · no longer on the register · serial 0281
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
During an interview conducted by FAA inspectors, the pilot reported that he stayed high in the pattern "because he was having engine problems and was afraid to land." He attempted several landings, but "decided to stay high and not land." During climb out after the third attempted landing, "the engine quit." The airplane stalled, rolled to the right and impacted the ground. The pilot did not possess a pilot's license, a student pilot certificate or a medical certificate. He had received 15 hours of flight instruction, some of which were in the accident airplane. He was not endorsed for solo flight. Witnesses reported that they observed the airplane make three approaches to runway 35. One witness reported that on the third approach, the airplane came across the threshold at an altitude of about 40 feet with a ground speed of about 20 to 25 mph. The airplane's wings were "wobbling back and forth," and the airplane was "yawing left and right." About midfield, the engine powered up, and the airplane entered a right turn. Another witness reported that he saw the airplane bank to the right, heard the engine power up, and then one second later, heard a "thud" as the airplane hit the ground.
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
- Flight time: 15 hours in all; 5 in this make and model
- Medical certificate: None
The aircraft
- Landing gear: fixed
- Engine: Rotax 582 (piston); 0 hours total
The flight
- Departed from: 2S6 Newberg OR at 4:19 pm
- Destination: 2S6
- Flight plan: none
- Runway 35, 2,745 ft by 50 ft
Weather at the time
- Light: daylight
- 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.