# NTSB Accident BFO90FA079
> **HUGHES 269C** · 1990-09-25 · JEFFERSON, MD, USA · FATL
## Event
- **NTSB number:** BFO90FA079
- **Event ID:** 20001212X24202
- **Type:** Accident
- **Date:** 1990-09-25
- **Location:** JEFFERSON, MD, USA
- **Coordinates:** 39.359714, -77.529579
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** HUGHES
- **Model:** 269C
- **Registration:** N1094D
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE FAILURE OF THE TAIL ROTOR DRIVE TRANSMISSION SYSTEM DUE TO A WORN TAIL ROTOR SPLINED DRIVE SLEEVE, AND INADEQUATE MAINTENANCE AND/OR INSPECTION BY THE OPERATOR. CONTRIBUTING TO THE LOSS OF CONTROL WAS THE STUDENT PILOT'S FAILURE TO MAINTAIN ADEQUATE ROTOR RPM DUE TO INEXPERIENCE.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=BFO90FA079) · MORVS · CC0 1.0*