# NTSB Accident NYC89LA068
> **ROBINSON R-22HP** · 1989-01-18 · RONKONKOMA, NY, USA · SERS
## Event
- **NTSB number:** NYC89LA068
- **Event ID:** 20001213X27654
- **Type:** Accident
- **Date:** 1989-01-18
- **Location:** RONKONKOMA, NY, USA
- **Coordinates:** 40.800243, -73.120193
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** ROBINSON
- **Model:** R-22HP
- **Registration:** N9021M
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE PILOT'S IMPROPER OPERATION OF THE ROTORCRAFT FLIGHT CONTROLS AND A RESULTING LOW ROTOR RPM CONDITION.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=NYC89LA068) · AI Analytics · CC0 1.0*