# NTSB Accident WPR14LA062
> **HILLER UH 12E** · 2013-12-09 · Chowchilla, CA, USA · NONE
## Event
- **NTSB number:** WPR14LA062
- **Event ID:** 20131209X91951
- **Type:** Accident
- **Date:** 2013-12-09
- **Location:** Chowchilla, CA, USA
- **Coordinates:** 37.098056, -120.110832
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** HILLER
- **Model:** UH 12E
- **Registration:** N36MV
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The failure of the torsional drive coupling, which resulted in a loss of drive to the main rotor system during low-altitude flight.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR14LA062) · AI Analytics · CC0 1.0*