# NTSB Incident CHI93IA346
> **CESSNA 414A** · 1993-08-30 · DICKINSON, ND, USA · NONE
## Event
- **NTSB number:** CHI93IA346
- **Event ID:** 20001211X13086
- **Type:** Incident
- **Date:** 1993-08-30
- **Location:** DICKINSON, ND, USA
- **Coordinates:** 46.879398, -102.780578
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 5
- **Total aboard:** 5
## Aircraft
- **Make:** CESSNA
- **Model:** 414A
- **Registration:** N36990
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** MINR
## Conditions
- **Light:** DAWN
- **Weather:** VMC
## Probable cause

the total failure of the airplane's heater system combustion air pressure safety switch.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI93IA346) · AI Analytics · CC0 1.0*