# NTSB Accident ERA13LA045
> **ROBINSON HELICOPTER COMPANY R22** · 2012-11-01 · Alexander City, AL, USA · SERS
## Event
- **NTSB number:** ERA13LA045
- **Event ID:** 20121102X31037
- **Type:** Accident
- **Date:** 2012-11-01
- **Location:** Alexander City, AL, USA
- **Coordinates:** 32.908889, -85.957778
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** ROBINSON HELICOPTER COMPANY
- **Model:** R22
- **Registration:** N231TM
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot’s delayed decision to initiate an autorotation and her subsequent improper conduct of the autorotation, which resulted in a hard landing, after the helicopter started vibrating for reasons that could not be determined because postaccident examinations revealed no anomalies that would have precluded normal operation.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA13LA045) · AI Analytics · CC0 1.0*