# Accident 19891029043699A: Gulstm AA1A, Borrego Springs, CA, October 29, 1989

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: October 29, 1989, 17:30 local time
- Place: Borrego Springs, CA
- Damage: Substantial damage
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: General operating rules (Part 91)
- Location: 33.1709° N, 116.2695° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=33.1709&lon=-116.2695&mi=10
- Aircraft: N9330L, a cancelled registration (https://openairdocs.org/deregistered/N9330L-2013-03-18) (OpenAirDocs)
- Registry model: American AA-1A (registry code 0630710, https://openairdocs.org/model/american-aa-1a) (OpenAirDocs)
- Registry engine: Lycoming 0-235 series (registry code 41505, https://openairdocs.org/engine/lycoming-0-235-series) (OpenAirDocs)
- Reported make and model: GULSTM AA1A
- Reported engine: LYC O235L2C
- Fatal injuries: 0
- Pilot flight hours: 89 total, 29 in this make and model, 77 in the last 90 days
- NTSB investigation: [NTSB LAX90LA015](https://openairdocs.org/ntsb/LAX90LA015) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19891029043699A

## Narrative

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

LOST POWER AND FLIPPED OVER ON FORCED LANDING. VALVE BROKE OFF MIGRATED THROUGH 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 LAX90LA015](https://openairdocs.org/ntsb/LAX90LA015), Oct 29, 1989: Grumman AA-1A (N9330L), Borrego Springs, CA, substantial damage. Probable cause: THE FAILURE OF THE ENGINE EXHAUST VALVE.

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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