# NTSB Accident MIA92LA031
> **ROBINSON R22 MARINER** · 1991-11-17 · OCALA, FL, USA · MINR
## Event
- **NTSB number:** MIA92LA031
- **Event ID:** 20001212X18492
- **Type:** Accident
- **Date:** 1991-11-17
- **Location:** OCALA, FL, USA
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 2
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** ROBINSON
- **Model:** R22 MARINER
- **Registration:** N4072U
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE PILOT-IN-COMMAND'S IMPROPER USE OF COLLECTIVE CONTROL AND THROTTLE DURING RECOVERY FROM AN AUTOROTATION WHICH RESULTED IN LOSS OF ROTOR RPM AND A SUBSEQUENT HARD LANDING.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=MIA92LA031) · AI Analytics · CC0 1.0*