# Accident 19910927063269A: Piper PA28161, San Carlos, CA, September 27, 1991

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 27, 1991, 14:45 local time
- Place: San Carlos, CA
- Damage: Substantial damage
- Phase of flight: Forced/Precautionary Landing
- Operating rules: General operating rules (Part 91)
- Location: 37.4910° N, 122.2606° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=37.4910&lon=-122.2606&mi=10
- Aircraft: N2520U, a cancelled registration (https://openairdocs.org/deregistered/N2520U-1992-12-01) (OpenAirDocs)
- Registry model: Piper PA-28-161 (registry code 7102803, https://openairdocs.org/model/piper-pa-28-161) (OpenAirDocs)
- Reported make and model: PIPER PA28161
- Reported engine: LYC O320D3G
- Fatal injuries: 0
- Pilot flight hours: 1,527 total, 1,421 in this make and model, 55 in the last 90 days
- NTSB investigation: [NTSB LAX91LA410](https://openairdocs.org/ntsb/LAX91LA410) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19910927063269A

## Narrative

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

ENGINE LOST POWER ON CLIMBOUT. FORCED LANDED IN MUDDY FIELD. INTAKE VALVE HAD FAILED ON FRESHLY REWORKED ENGINE.

## 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 LAX91LA410](https://openairdocs.org/ntsb/LAX91LA410), Sep 27, 1991: Piper PA-28-161 (N2520U), San Carlos, CA, substantial damage. Probable cause: THE FAILURE OF THE NUMBER 3 INTAKE VALVE RESULTING IN A TOTAL LOSS OF ENGINE POWER. A FACTOR IN THIS ACCIDENT WAS THE UNSUITABLE TERRAIN FOR LANDING THE AIRCRAFT.

## Other reports on N2520U (1)

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

- [Incident 19881204069149I](https://openairdocs.org/incident/19881204069149I), Dec 4, 1988: Piper PA28161 (N2520U), Livermore, CA, Minor damage. Student pulled and set parking brake instead of flaps. Higher speed resulted in float. Brake set made tire blow.

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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