# Incident 19800930071999I: Gulstm AA1C, San Jose, CA, September 30, 1980

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: September 30, 1980, 13:10 local time
- Place: San Jose, CA
- Airport: Reid Hillview
- Phase of flight: Climb
- Operating rules: General operating rules (Part 91)
- Location: 37.3394° N, 121.8950° W: Placed by OpenAirDocs: center of San Jose, CA, within about 8 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.3394&lon=-121.8950&mi=10
- Aircraft: N9525U, registered now (https://openairdocs.org/aircraft/N9525U) (OpenAirDocs)
- Registry model: Grumman American Avn. AA-1C (registry code 3960100, https://openairdocs.org/model/grumman-american-avn-aa-1c) (OpenAirDocs)
- Registry engine: Lycoming 0-235 series (registry code 41505, https://openairdocs.org/engine/lycoming-0-235-series) (OpenAirDocs)
- Reported make and model: GULSTM AA1C
- Reported engine: LYC O235L2C
- Fatal injuries: 0
- Pilot flight hours: 20 total, 20 in this make and model, 0 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19800930071999I

## Narrative

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

SHORTLY AFTER TAKEOFF ENGINE ROUGHNESS DEVELOPED. RETURNED FOR LANDING. BOTTOM PLUGS LEAD FOULED.

## Other reports on N9525U (1)

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

- [Incident 19780122004179I](https://openairdocs.org/incident/19780122004179I), Jan 22, 1978: Gulstm AA1C (N9525U), Sacramento, CA, Minor damage. Student pilot on first cross country poroised on landing.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
