# NTSB Accident SEA96LA103
> **Schweizer G164B** · 1996-05-29 · MOSCOW, ID, USA · NONE
## Event
- **NTSB number:** SEA96LA103
- **Event ID:** 20001208X05882
- **Type:** Accident
- **Date:** 1996-05-29
- **Location:** MOSCOW, ID, USA
- **Coordinates:** 46.709732, -116.909782
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** Schweizer
- **Model:** G164B
- **Registration:** N48559
- **FAR Part:** 137
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

inflight loss of an unsecured access plug from the engine crankcase, which resulted in a loss of engine oil and a forced landing.  Factors relating to the accident were: hilly terrain, and foreign material (engine oil) on the windscreen which limited forward visibility.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA96LA103) · AI Analytics · CC0 1.0*