# NTSB Accident NYC99FA097
> **Ives SONERAI II-L** · 1999-04-25 · EASTFORD, CT, USA · FATL
## Event
- **NTSB number:** NYC99FA097
- **Event ID:** 20001205X00548
- **Type:** Accident
- **Date:** 1999-04-25
- **Location:** EASTFORD, CT, USA
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** Ives
- **Model:** SONERAI II-L
- **Registration:** N56RA
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

Inadequate welding of the airplane's spar-box by the owner/builder, which resulted in a total spar-box failure in-flight.  A factor in the accident was the pilot's decision to perform aerobatics.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=NYC99FA097) · AI Analytics · CC0 1.0*