# NTSB Accident WPR25FA146
> **CESSNA 177RG** · 2025-05-01 · Grass Valley, CA, USA · FATL
## Event
- **NTSB number:** WPR25FA146
- **Event ID:** 20250501200089
- **Type:** Accident
- **Date:** 2025-05-01
- **Location:** Grass Valley, CA, USA
- **Coordinates:** 39.223303, -121.0361
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** CESSNA
- **Model:** 177RG
- **Registration:** N52156
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

An improperly tightened B-nut fitting at the fuel flow divider, which resulted in a fuel leak and loss of engine power due to fuel starvation, and the inadequate maintenance inspection, which failed to detect and correct the discrepancy.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR25FA146) · AI Analytics · CC0 1.0*