Piper PA-20 accident near Grass Valley, California, August 3, 2008
On August 3, 2008, a Piper PA-20, registered N7635K, was substantially damaged in an accident during landing (landing roll) near Grass Valley, California (Grass Valley airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The pilot's failure to maintain directional control due to his foot slipping off one rudder pedal while braking.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 3, 2008
- Place
- Grass Valley, California · Grass Valley · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Piper PA-20 · all PA-20s on the register
- Registration
- N7635K · registry record · serial 20-454
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The pilot reported that he made a wheel landing on the runway. He lowered the tail and started to apply the brakes when his right foot slipped off the rudder pedal. The plane veered left and he applied full left brake to avoid nosing into a drainage ditch head first. During this turn the tail wheel struck a boulder and the right wing tipped down and struck 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
What happened, in order
- Loss of control on ground during landing (landing roll) defining event
- Runway excursion during landing (landing roll)
- Collision with terrain or object (not controlled flight into terrain) during landing (landing roll)
The NTSB's findings
- cause Personnel issues › Action/decision › Action › Incorrect action performance › Pilot
- cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Directional control › Not attained/maintained
Pilot
- Certificate: private
- Ratings: single-engine land
- Flight time: 404 hours in all; 183 in this make and model; 22 in the last 90 days; 15 in the last 30 days
- Medical certificate: Class 3
The aircraft
- Landing gear: fixed
- Engine: Lycoming O-320 (piston); 0 hours total
The flight
- Departed from: 4CA2 Brentwood CA
- Destination: KGOO Grass Valley CA
- Flight plan: none
- Runway 25, 4,350 ft by 75 ft
Weather at the time
- Light: daylight
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight 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 N7635K 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.