# NTSB Accident MIA89LA081
> **BELL TH-1L** · 1989-02-08 · GREENVILLE, FL, USA · NONE
## Event
- **NTSB number:** MIA89LA081
- **Event ID:** 20001213X27768
- **Type:** Accident
- **Date:** 1989-02-08
- **Location:** GREENVILLE, FL, USA
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** BELL
- **Model:** TH-1L
- **Registration:** N204AP
- **FAR Part:** 133
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

INSTALLATION OF THE IMPROPER SPRAG CLUTCH ASSEMBLY BY THE OWNERS MAINTENANCE PERSONNEL RESULTING IN FAILURE OF THE SPRAG CLUTCH AND THE LOSS OF TRANSMISSION DRIVE.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=MIA89LA081) · AI Analytics · CC0 1.0*