# NTSB Accident LAX89FA099
> **Silvaire 8F** · 1989-01-29 · LAKE ELSINORE, CA, USA · FATL
## Event
- **NTSB number:** LAX89FA099
- **Event ID:** 20001213X27605
- **Type:** Accident
- **Date:** 1989-01-29
- **Location:** LAKE ELSINORE, CA, USA
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** Silvaire
- **Model:** 8F
- **Registration:** N3550G
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

LOSS OF AIRCRAFT CONTROL DUE TO IMPROPER AND/OR UNAPPROVED MODIFICATIONS TO THE AIRCRAFT'S AILERON CONTROL SYSTEM BY THE PILOT/OWNER. A CONTRIBUTING FACTOR WAS THE PILOT/OWNER'S OVERCONFIDENCE IN HIS ABILITY TO MODIFY THE AILERON CONTROL SYSTEM WITHOUT APPROVAL BY THE MANUFACTURER OR THE FAA.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX89FA099) · AI Analytics · CC0 1.0*