# NTSB Accident WPR17LA211
> **ROBINSON HELICOPTER R22** · 2017-09-20 · Long Beach, CA, USA · SERS
## Event
- **NTSB number:** WPR17LA211
- **Event ID:** 20170920X73238
- **Type:** Accident
- **Date:** 2017-09-20
- **Location:** Long Beach, CA, USA
- **Coordinates:** 33.819721, -118.15139
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** ROBINSON HELICOPTER
- **Model:** R22
- **Registration:** N7514S
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The student pilot's failure to maintain rotor rpm during the crosswind landing approach and his subsequent improper decision to initiate an autorotation instead of applying corrective control inputs after the helicopter experienced normal airframe vibration. Also causal was his failure to raise the collective during the landing flare, which resulted in a hard landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR17LA211) · AI Analytics · CC0 1.0*