# NTSB Accident WPR11LA167
> **ROTORWAY A600** · 2011-03-15 · Chandler, AZ, USA · NONE
## Event
- **NTSB number:** WPR11LA167
- **Event ID:** 20110316X73905
- **Type:** Accident
- **Date:** 2011-03-15
- **Location:** Chandler, AZ, USA
- **Coordinates:** 33.224723, -111.964721
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** ROTORWAY
- **Model:** A600
- **Registration:** N602RW
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A design modification that changed the fasteners and components used to attach the main rotor drive pulley to the engine, which resulted in fatigue failure of those fasteners and a complete loss of power to the main rotor.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR11LA167) · AI Analytics · CC0 1.0*