# NTSB Accident FTW96FA009
> **RUPE RV-4** · 1995-10-07 · LONGMONT, CO, USA · FATL
## Event
- **NTSB number:** FTW96FA009
- **Event ID:** 20001207X04680
- **Type:** Accident
- **Date:** 1995-10-07
- **Location:** LONGMONT, CO, USA
- **Coordinates:** 40.17052, -105.110366
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** RUPE
- **Model:** RV-4
- **Registration:** N61TR
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

the installation of an unapproved metal propeller which led to a fatigue failure of a blade and loss of aircraft control.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=FTW96FA009) · AI Analytics · CC0 1.0*