# NTSB Accident SEA90FA171
> **LAKE LA-4** · 1990-06-09 · ONALASKA, WA, USA · FATL
## Event
- **NTSB number:** SEA90FA171
- **Event ID:** 20001212X23538
- **Type:** Accident
- **Date:** 1990-06-09
- **Location:** ONALASKA, WA, USA
- **Coordinates:** 46.599651, -122.66996
## Injuries
- **Highest injury:** FATL
- **Fatal:** 3
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 3
## Aircraft
- **Make:** LAKE
- **Model:** LA-4
- **Registration:** N68DG
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** IMC
## Probable cause

IMPROPER IN-FLIGHT PLANNING/DECISION BY THE PILOT, AND HIS INADVERTENT FLIGHT INTO INSTRUMENT METEOROLOGICAL CONDITIONS (IMC).  FACTORS RELATED TO THE ACCIDENT WERE: THE ADVERSE WEATHER AND TERRAIN CONDITIONS.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA90FA171) · AI Analytics · CC0 1.0*