# Accident 20040321005109A: Amtr GLASAIRSHII, San Luis Obispo, CA, March 21, 2004

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: March 21, 2004, 12:46 local time
- Place: San Luis Obispo, CA
- Airport: San Luis Obispo County
- Damage: Substantial damage
- Phase of flight: Final Approach
- Operating rules: General operating rules (Part 91)
- Location: 35.2333° N, 120.6333° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=35.2333&lon=-120.6333&mi=10
- Aircraft: N309TS, a cancelled registration (https://openairdocs.org/deregistered/N309TS-2013-07-30) (OpenAirDocs)
- Registry model: Stanley Thomas L GLASAIR SH-2 (registry code 05655VX, https://openairdocs.org/model/stanley-thomas-l-glasair-sh-2) (OpenAirDocs)
- Registry engine: Lycoming I0360 SER A&C (registry code 41511, https://openairdocs.org/engine/lycoming-i0360-ser-a-c) (OpenAirDocs)
- Reported make and model: AMTR GLASAIRSHII
- Reported engine: LYC IO360A1B
- Fatal injuries: 0
- Pilot flight hours: 38,700 total, 1,691 in this make and model, 57 in the last 90 days
- NTSB investigation: [NTSB LAX04LA169](https://openairdocs.org/ntsb/LAX04LA169) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20040321005109A

## Narrative

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

(-23) ON MARCH 21, 2004, ABOUT 1246 PACIFIC STANDARD TIME, A STANLEY GLASAIR SH-2R, N902TS WAS ON APPROACH TO SAN LUIS OBISPO (SBP) AIRPORT. AT ABOUT 5 MILES FROM SBP, THE ENGINE STARTED TO MAKE A LOUD CLATTER. AT ABOUT 2.5 MILES FROM SBP THE ENGINE SEIZED AND THE PILOT MADE A FORCED LANDING INTO A SMALL GRASS FIELD AND HIT A DITCH HIDDEN IN THE TALL GRASS. THE AIRCRAFT TUBMLED CAUSING SUBSTANTIAL DAMAGE TO THE AIRCRAFT.

## 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 LAX04LA169](https://openairdocs.org/ntsb/LAX04LA169), Mar 21, 2004: Stanley Glasair SH-2 (N309TS), San Luis Obispo, CA, substantial damage. Probable cause: The loss of engine power due to the failure of the #3 cylinder piston and connecting rod for undetermined reasons.

## Other reports on N309TS (1)

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

- [Incident 19930724040329I](https://openairdocs.org/incident/19930724040329I), Jul 24, 1993: Amtr GLASAIR (N309TS), San Luis Obispo, CA, Minor damage. Engine failed in flight. Forced landing in field. Lost all oil when drain plug came out. Plug not properly secured.

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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