# NTSB Accident FTW98FA239
> **Bell 206L-3** · 1998-05-24 · SPRINGDALE, AR, USA · SERS
## Event
- **NTSB number:** FTW98FA239
- **Event ID:** 20001211X10054
- **Type:** Accident
- **Date:** 1998-05-24
- **Location:** SPRINGDALE, AR, USA
- **Coordinates:** 36.179897, -94.14019
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 3
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 3
## Aircraft
- **Make:** Bell
- **Model:** 206L-3
- **Registration:** N27AE
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The failure of maintenance personnel to properly assemble the engine's accessory gearbox, which resulted in a total loss of engine power due to partial blockage of the main oil passage by an o-ring.  The blockage reduced oil flow to the turbine shafting, which led to the total failure of the gas producer turbine shaft and the power (free) turbine shaft.  A factor was the lack of suitable terrain for the forced landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=FTW98FA239) · AI Analytics · CC0 1.0*