# NTSB Accident ANC91LA093
> **HELIO H-295** · 1991-07-09 · PORT ALSWORTH, AK, USA · MINR
## Event
- **NTSB number:** ANC91LA093
- **Event ID:** 20001212X17411
- **Type:** Accident
- **Date:** 1991-07-09
- **Location:** PORT ALSWORTH, AK, USA
- **Coordinates:** 60.200386, -154.279922
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 3
- **Uninjured:** 1
- **Total aboard:** 4
## Aircraft
- **Make:** HELIO
- **Model:** H-295
- **Registration:** N456JH
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

FAILURE OF THE PILOT TO MAINTAIN SUFFICIENT ALTITUDE AND CLEARANCE FROM MOUNTAINOUS TERRAIN.  FACTORS RELATED TO THE ACCIDENT WERE: THE RISING TERRAIN AND A DOWNDRAFT.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ANC91LA093) · AI Analytics · CC0 1.0*