# NTSB Accident CHI05LA243
> **Allensworth Baby Belle** · 2005-08-28 · El Dara, IL, USA · FATL
## Event
- **NTSB number:** CHI05LA243
- **Event ID:** 20050829X01319
- **Type:** Accident
- **Date:** 2005-08-28
- **Location:** El Dara, IL, USA
- **Coordinates:** 39.638889, -90.77861
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** Allensworth
- **Model:** Baby Belle
- **Registration:** N9094P
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The manufacturer failed to specify a relief radius on the tail rotor spindle drawings, which resulted in the spindle being manufactured with an inadequate relief radius at the point of fatigue failure.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI05LA243) · AI Analytics · CC0 1.0*