# NTSB Accident DEN93LA069
> **IRVING SIEWERT OSPREY GP-4** · 1993-06-25 · CANON CITY, CO, USA · FATL
## Event
- **NTSB number:** DEN93LA069
- **Event ID:** 20001211X12599
- **Type:** Accident
- **Date:** 1993-06-25
- **Location:** CANON CITY, CO, USA
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** IRVING SIEWERT
- **Model:** OSPREY GP-4
- **Registration:** N85Z
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

FAILURE BY THE PILOT/BUILDER TO FOLLOW CONSTRUCTION SPECIFICATIONS AND THE USE OF IMPROPER MATERIALS DURING CONSTRUCTION OF THE AIRCRAFT.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DEN93LA069) · MORVS · CC0 1.0*