# Incident 20011020028799I: Cessna 172R, San Martin, CA, October 20, 2001

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: October 20, 2001, 13:15 local time
- Place: San Martin, CA
- Airport: Santa Clara County Airport
- Phase of flight: Normal Cruise
- Operating rules: General operating rules (Part 91)
- Location: 37.0829° N, 121.5963° W: Placed by OpenAirDocs: center of San Martin, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.0829&lon=-121.5963&mi=10
- Aircraft: N9552A, registered now (https://openairdocs.org/aircraft/N9552A) (OpenAirDocs)
- Registry model: Cessna 172R (registry code 2072401, https://openairdocs.org/model/cessna-172r) (OpenAirDocs)
- Registry engine: Lycoming O&VO-360 series (registry code 41514, https://openairdocs.org/engine/lycoming-o-vo-360-series) (OpenAirDocs)
- Reported make and model: CESSNA 172R
- Reported engine: LYC IO360L2A
- People aboard: 2
- Fatal injuries: 0
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20011020028799I

## Narrative

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

(-23) THE PILOT STATED THAT HE WAS ON A VFR FLIGHT FROM WATSONVILLE CA TO REID-HILLVIEW AIRPORT LOCATED IN SAN JOSE, CA. WHILE AT CRUISING SPEED OVER ANDERSON RESERVOIR, THE ENGINE BEGAN TO SHAKE VIOLENTLY AND LOSE POWER. HE TURNED THE AIRCRAFT AROUND AND HEADED DIRECTLY TOWARD SOUTH COUNTY AIRPORT LOCATED IN SAN MARTIN, CA. THE PILOT ANNOUNCED THE SITUATION ON 122.7 AN DATTEMPTED TO LAND ON THE RUNWAY. HOWEVER, HE WAS TOO HIGH TO MAKE THE RUNWAY AND THERE WAS NOT ENOUGH ENGINE POWER FOR A GO AROUND SO HE LANDED IN A FIELD JUST SOUTH OF RUNWAY 14 AT SOUTH COUNTY AIRPORT. MAINTENANCE PERSONNEL AT SOUTH COUNTY AIRPORT INSPECTED THE ENGINE AND FOUND THAT THE NUMBER ONE (1) CYLINDER ROCKER ARM BOSS ASSEMBLY FAILED CAUSING THE NUMBER ONE (1) CYLINDER TO MALFUNCTION AND LOSE POWER.

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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