# NTSB Accident MIA97TA139
> **Bell 204-B** · 1997-04-16 · CALDERWOOD, TN, USA · NONE
## Event
- **NTSB number:** MIA97TA139
- **Event ID:** 20001208X07802
- **Type:** Accident
- **Date:** 1997-04-16
- **Location:** CALDERWOOD, TN, USA
- **Coordinates:** 35.660064, -84.089126
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** Bell
- **Model:** 204-B
- **Registration:** N4580Y
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The inadequate maintenance inspection of the helicopter resulting in loss of lubrication from the main drive shaft going undetected until failure of the drive shaft.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=MIA97TA139) · AI Analytics · CC0 1.0*