# NTSB Accident CHI05FA192
> **Aerospatiale AS365N** · 2005-07-14 · Valparaiso, IN, USA · NONE
## Event
- **NTSB number:** CHI05FA192
- **Event ID:** 20050901X01360
- **Type:** Accident
- **Date:** 2005-07-14
- **Location:** Valparaiso, IN, USA
- **Coordinates:** 41.466667, -87.050552
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 4
- **Total aboard:** 4
## Aircraft
- **Make:** Aerospatiale
- **Model:** AS365N
- **Registration:** N365S
- **FAR Part:** 135
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The loose tail rotor drive shaft coupling due to its improper installation by the operator's maintenance personnel, which resulted in the failure of the tail rotor drive shaft.  An additional cause was the inability of the pilot to maintain control of the helicopter in the hover following the drive shaft failure.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI05FA192) · AI Analytics · CC0 1.0*