# NTSB Accident ANC17FA004
> **FAIRCHILD HELI-PORTER PILATUS PC-6** · 2016-10-29 · Port Alsworth, AK, USA · FATL
## Event
- **NTSB number:** ANC17FA004
- **Event ID:** 20161031X30541
- **Type:** Accident
- **Date:** 2016-10-29
- **Location:** Port Alsworth, AK, USA
- **Coordinates:** 61.094722, -153.446945
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** FAIRCHILD HELI-PORTER
- **Model:** PILATUS PC-6
- **Registration:** N5308F
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DUSK
- **Weather:** Unk
## Probable cause

The airplane's collision with mountainous terrain while operating in an area of reduced visibility and icing conditions. Contributing to the accident was the pilot's inadequate preflight planning, which would have identified deteriorating weather conditions along the planned route of flight.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ANC17FA004) · AI Analytics · CC0 1.0*