# Accident 20050209010189A: Amrgen AA1B, Petaluma, CA, February 9, 2005

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: February 9, 2005, 15:56 local time
- Place: Petaluma, CA
- Damage: Destroyed
- Phase of flight: Forced/Precautionary Landing
- Operating rules: General operating rules (Part 91)
- Location: 37.2631° N, 122.6114° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=37.2631&lon=-122.6114&mi=10
- Aircraft: N5704L, a cancelled registration (https://openairdocs.org/deregistered/N5704L-2005-04-04) (OpenAirDocs)
- Registry model: American AA-1B (registry code 0630820, https://openairdocs.org/model/american-aa-1b) (OpenAirDocs)
- Reported make and model: AMRGEN AA1B
- Reported engine: LYC O320E2G
- People aboard: 1
- Fatal injuries: 1
- Pilot flight hours: 610 total, 110 in this make and model
- NTSB investigation: [NTSB LAX05FA090](https://openairdocs.org/ntsb/LAX05FA090) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20050209010189A

## Narrative

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

(-23) THE AIRPLANE HAD COMPLETED AT LEAST ONE TOUCH AND GO OPERATION AND DURING CLIMB OUT WITNESSES HEARD THE AIRPLANE'S ENGINE SPUTTER AND BACKFIRE. THE AIRCRAFT TURNED TOWARDS A DOWNWIND DIRECTION AND DESCENDED. THE NOSE THEN PITCHED UP FOLLOWED BY A PITCH DOWN AND A VERTICAL RIGHT TURNING DESCENT TO IMPACT. THERE WAS NO KNOWN COMMUNICATIONS WITH THE PILOT.

## 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 LAX05FA090](https://openairdocs.org/ntsb/LAX05FA090), Feb 10, 2005: American AA1B (N5704L), Petaluma, CA, destroyed, 1 fatal. Probable cause: The pilot's failure to maintain an adequate airspeed above the stall speed (Vso) while maneuvering to a landing area that resulted in a stall-spin. Factors in the accident were the fuel starvation…

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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