# NTSB Accident CEN22FA317
> **BELL UH-1H** · 2022-07-17 · Chapelle, NM, USA · FATL
## Event
- **NTSB number:** CEN22FA317
- **Event ID:** 20220717105488
- **Type:** Accident
- **Date:** 2022-07-17
- **Location:** Chapelle, NM, USA
- **Coordinates:** 35.38004, -105.23736
## Injuries
- **Highest injury:** FATL
- **Fatal:** 4
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 4
## Aircraft
- **Make:** BELL
- **Model:** UH-1H
- **Registration:** N911SZ
- **FAR Part:** PUBU
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The total loss of engine power due to the fatigue failure of the starter-generator input (zerol) gear which failed due to poor maintenance. Contributing to the accident was the unsuccessful autorotation complicated by the setting sun and high density altitude.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN22FA317) · AI Analytics · CC0 1.0*