# NTSB Accident WPR18LA128
> **GRUMMAN ACFT ENG COR-SCHWEIZER G 164C** · 2018-04-29 · Maxwell, CA, USA · NONE
## Event
- **NTSB number:** WPR18LA128
- **Event ID:** 20180429X05354
- **Type:** Accident
- **Date:** 2018-04-29
- **Location:** Maxwell, CA, USA
- **Coordinates:** 39.26472, -122.11916
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** GRUMMAN ACFT ENG COR-SCHWEIZER
- **Model:** G 164C
- **Registration:** N6674K
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A total loss of engine power due to an uncommanded closing of the fuel shutoff valve, which terminated fuel to the engine. The reason for the fuel shutoff valve’s closure could not be determined based on the available information.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR18LA128) · AI Analytics · CC0 1.0*