# NTSB Accident LAX92LA050
> **SPEYER AVID AMPHIBIAN** · 1991-11-22 · SAN YSIDRO, CA, USA · FATL
## Event
- **NTSB number:** LAX92LA050
- **Event ID:** 20001212X18479
- **Type:** Accident
- **Date:** 1991-11-22
- **Location:** SAN YSIDRO, CA, USA
- **Coordinates:** 32.549873, -117.039222
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** SPEYER
- **Model:** AVID AMPHIBIAN
- **Registration:** N118A
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

FAILURE OF THE PILOT/BUILDER TO FOLLOW THE MANUFACTURER'S RECOMMENDED AIRFRAME MODIFICATION PROCEDURE TO PREVENT THE INFLIGHT LOSS OF A FLAPERON DUE TO FLUTTER.  CONTRIBUTING TO THE ACCIDENT WAS IN INFLIGHT SEPARATION OF THE WING WHEN THE DESIGN LIMITS OF THE AIRFRAME WERE EXCEEDED.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX92LA050) · AI Analytics · CC0 1.0*