# NTSB Accident ANC03LA038
> **Hughes 369D** · 2003-03-31 · TYONEK, AK, USA · NONE
## Event
- **NTSB number:** ANC03LA038
- **Event ID:** 20030408X00456
- **Type:** Accident
- **Date:** 2003-03-31
- **Location:** TYONEK, AK, USA
- **Coordinates:** 61.016666, -151.448883
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** Hughes
- **Model:** 369D
- **Registration:** N90431
- **FAR Part:** 133
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's inadequate visual lookout while lifting into a hover to ensure the helicopter was clear of all objects, which resulted in separation of an external mirror that then struck and damaged a main rotor blade.  Factors in the accident were the presence of a seismic cable, and high vegetation around the helicopter's takeoff spot.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ANC03LA038) · AI Analytics · CC0 1.0*