# NTSB Accident CEN11LA226
> **ROBINSON HELICOPTER R22 BETA** · 2011-03-09 · Bulverde, TX, USA · NONE
## Event
- **NTSB number:** CEN11LA226
- **Event ID:** 20110315X92250
- **Type:** Accident
- **Date:** 2011-03-09
- **Location:** Bulverde, TX, USA
- **Coordinates:** 29.770519, -98.449897
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** ROBINSON HELICOPTER
- **Model:** R22 BETA
- **Registration:** N112HE
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The in-flight separation of the fuel cap, which impacted the helicopter’s tail rotor and resulted in the loss of tail rotor thrust.  Contributing to the accident was the inadequate preflight inspection by both pilots, who did not ensure that the fuel cap was securely tightened before flight.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN11LA226) · AI Analytics · CC0 1.0*