# NTSB Accident ERA09LA477
> **VOLLENWEIDER R/HURST R F VANS RV-9A** · 2009-08-23 · Marianna, FL, USA · SERS
## Event
- **NTSB number:** ERA09LA477
- **Event ID:** 20090823X01951
- **Type:** Accident
- **Date:** 2009-08-23
- **Location:** Marianna, FL, USA
- **Coordinates:** 30.838054, -85.23944
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** VOLLENWEIDER R/HURST R F
- **Model:** VANS RV-9A
- **Registration:** N362TS
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

Failure of the propeller speed reduction gearbox for undetermined reasons. Contributing to the accident was the pilot’s decision to disregard the manufacturer's mandate to replace the gearbox, the manufacturer's failure to provide owners with technical substantiation for the replacement, and the pilot's decision to overfly several suitable off-field landing sites in an attempt to glide to a distant airport.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA09LA477) · AI Analytics · CC0 1.0*