# NTSB Incident MIA91IA032
> **ATR ATR-42-300** · 1990-11-26 · ST. THOMAS · NONE
## Event
- **NTSB number:** MIA91IA032
- **Event ID:** 20001212X24657
- **Type:** Incident
- **Date:** 1990-11-26
- **Location:** ST. THOMAS
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 47
- **Total aboard:** 47
## Aircraft
- **Make:** ATR
- **Model:** ATR-42-300
- **Registration:** N971NA
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** MINR
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE FAILURE OF THE LEFT MAIN LANDING GEAR SIDE BRACE LOWER ARM DUE TO FATIGUE RESULTING FROM CORROSION FORMATION, WHICH RESULTED FROM IMPROPER DESIGN TO PREVENT CORROSION FORMATION.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=MIA91IA032) · AI Analytics · CC0 1.0*