# NTSB Accident CEN11FA422
> **ROBINSON R22 BETA** · 2011-06-27 · Del Valle, TX, USA · FATL
## Event
- **NTSB number:** CEN11FA422
- **Event ID:** 20110627X51003
- **Type:** Accident
- **Date:** 2011-06-27
- **Location:** Del Valle, TX, USA
- **Coordinates:** 30.159654, -97.599746
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** ROBINSON
- **Model:** R22 BETA
- **Registration:** N7779M
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The divergence of the main rotor from its normal plane of rotation for reasons that cannot be determined because the pilot’s control inputs leading up to the event are unknown, resulting in mast bumping and main rotor blade separation.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN11FA422) · AI Analytics · CC0 1.0*