# NTSB Accident ERA12LA071
> **SIAI-MARCHETTI S205-22R** · 2011-11-05 · Okeechobee, FL, USA · NONE
## Event
- **NTSB number:** ERA12LA071
- **Event ID:** 20111114X64446
- **Type:** Accident
- **Date:** 2011-11-05
- **Location:** Okeechobee, FL, USA
- **Coordinates:** 27.321945, -81.023887
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** SIAI-MARCHETTI
- **Model:** S205-22R
- **Registration:** N729WA
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A partial loss of engine power due to a failure of the drive bearings in the alternator drive system. Contributing to the accident was the inadequate maintenance.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA12LA071) · AI Analytics · CC0 1.0*