# NTSB Accident LAX90LA015
> **GRUMMAN AA-1A** · 1989-10-29 · BORREGO SPRINGS, CA, USA · MINR
## Event
- **NTSB number:** LAX90LA015
- **Event ID:** 20001213X29640
- **Type:** Accident
- **Date:** 1989-10-29
- **Location:** BORREGO SPRINGS, CA, USA
- **Coordinates:** 33.170883, -116.269485
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** GRUMMAN
- **Model:** AA-1A
- **Registration:** N9330L
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DUSK
- **Weather:** VMC
## Probable cause

THE FAILURE OF THE ENGINE EXHAUST VALVE.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX90LA015) · AI Analytics · CC0 1.0*