# Accident 20080802848599A: Piper PA20, Grass Valley, CA, August 2, 2008

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 2, 2008, 16:15 local time
- Place: Grass Valley, CA
- Airport: Nevada County Air Park
- Damage: Substantial damage
- Phase of flight: Roll-Out (Fixed Wing)
- Operating rules: General operating rules (Part 91)
- Location: 39.2239° N, 121.0050° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=39.2239&lon=-121.0050&mi=10
- Aircraft: N7635K, registered now (https://openairdocs.org/aircraft/N7635K) (OpenAirDocs)
- Registry model: Piper PA-20 (registry code 7102002, https://openairdocs.org/model/piper-pa-20) (OpenAirDocs)
- Registry engine: Lycoming 0-320 series (registry code 41508, https://openairdocs.org/engine/lycoming-0-320-series) (OpenAirDocs)
- Reported make and model: PIPER PA20
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 403 total, 183 in this make and model, 22 in the last 90 days
- NTSB investigation: [NTSB LAX08CA255](https://openairdocs.org/ntsb/LAX08CA255) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20080802848599A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) AFTER LANDING, THE PILOT ATTEMPTED TO SLOW DOWN BY USING THE BRAKES.  HIS RIGHT FOOT SLID OFF THE RIGHT BRAKE CAUSING DIFFERENTIAL BRAKING.  THE AIRCRAFT WENT TO THE LEFT, EXITING THE RUNWAY.  DURING AN ATTEMPT TO REGAIN AIRCRAFT CONTROL, THE TAIL OF THE AIRCRAFT COLLIDED WITH A BOULDER.  THE PILOT WAS NOT INJURED, AIRCRAFT WAS SUBSTANTIALLY DAMAGED, VISUAL METEOROLOGICAL CONDITIONS PREVAILED.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB LAX08CA255](https://openairdocs.org/ntsb/LAX08CA255), Aug 3, 2008: Piper PA-20 (N7635K), Grass Valley, CA, substantial damage. Probable cause: The pilot's failure to maintain directional control due to his foot slipping off one rudder pedal while braking.

## Other reports on N7635K (2)

Matched to the same aircraft by N-number and date.

- [Accident 20260618006389A](https://openairdocs.org/incident/20260618006389A), Jun 18, 2026: Piper PA-20 (N7635K), Cordova, AK, Destroyed, 1 fatal. A Piper PA-20, flown by a commercial pilot with an instrument rating, departed under VFR conditions but encountered low ceilings, rain, fog and obscured…
- [Accident 19770501016059A](https://openairdocs.org/incident/19770501016059A), May 1, 1977: Piper PA20 (N7635K), Ismay, MT, Substantial damage. Landing in alfalfa fld,swerved left,nosed over.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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