# NTSB Accident ERA15FA085
> **ROBINSON HELICOPTER R22 BETA** · 2014-12-29 · Lake Worth, FL, USA · FATL
## Event
- **NTSB number:** ERA15FA085
- **Event ID:** 20141229X15321
- **Type:** Accident
- **Date:** 2014-12-29
- **Location:** Lake Worth, FL, USA
- **Coordinates:** 26.6, -80.086669
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** ROBINSON HELICOPTER
- **Model:** R22 BETA
- **Registration:** N771MM
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A main rotor stall due to low rotor rpm, which resulted in an uncontrolled descent into terrain. Contributing to the accident was the flight instructor’s delayed remedial action.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA15FA085) · AI Analytics · CC0 1.0*