# Accident 19911011045969A: Beech K35, Grass Valley, CA, October 11, 1991

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: October 11, 1991, 16:00 local time
- Place: Grass Valley, CA
- Airport: Nevada County Airpark
- Damage: Substantial damage
- Phase of flight: Level Off Touchdown
- Operating rules: General operating rules (Part 91)
- Location: 39.1801° N, 120.9795° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=39.1801&lon=-120.9795&mi=10
- Aircraft: N9559R, a cancelled registration (https://openairdocs.org/deregistered/N9559R-1994-08-08) (OpenAirDocs)
- Registry model: Beech K35 (registry code 1151524, https://openairdocs.org/model/beech-k35) (OpenAirDocs)
- Reported make and model: BEECH K35
- Reported engine: CONT IO470C
- People aboard: 3
- Fatal injuries: 0
- Pilot flight hours: 316 total, 57 in this make and model, 27 in the last 90 days
- NTSB investigation: [NTSB LAX92LA012](https://openairdocs.org/ntsb/LAX92LA012) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19911011045969A

## Narrative

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

TRIED TO LAND IN EXCESSIVE TURBULENCE FROM A SQUALL LINE NEARBY. WING TIP STRUCK GROUND AND AIRCRAFT CARTWHEELED.

## 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 LAX92LA012](https://openairdocs.org/ntsb/LAX92LA012), Oct 11, 1991: Beech K35 (N9559R), Grass Valley, CA, substantial damage. Probable cause: THE INADVERTENT ENCOUNTER WITH A MICROBURST/DOWNBURST PHENOMENA ASSOCIATED WITH THUNDERSTORM ACTIVITY. A FACTOR IN THE ACCIDENT WAS THE FAILURE OF THE PILOT TO ADEQUATELY ASSESS THE WEATHER…

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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