# NTSB Accident DEN90FA085
> **CESSNA 421-C** · 1990-04-01 · BOULDER, CO, USA · FATL
## Event
- **NTSB number:** DEN90FA085
- **Event ID:** 20001212X22891
- **Type:** Accident
- **Date:** 1990-04-01
- **Location:** BOULDER, CO, USA
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 3
## Aircraft
- **Make:** CESSNA
- **Model:** 421-C
- **Registration:** N2655V
- **FAR Part:** 135
- **Engines:** 2
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A LOSS OF AIRPLANE CONTROL AS A RESULT CONTROL INTERFERENCE BY THE PASSENGER FOLLOWING A STRUGGLE BETWEEN THE PILOT AND THE PASSENGER.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DEN90FA085) · AI Analytics · CC0 1.0*