# NTSB Accident WPR22LA211
> **RANS S21** · 2022-06-09 · Fairfield, UT, USA · MINR
## Event
- **NTSB number:** WPR22LA211
- **Event ID:** 20220613105241
- **Type:** Accident
- **Date:** 2022-06-09
- **Location:** Fairfield, UT, USA
- **Coordinates:** 40.244113, -112.08891
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** RANS
- **Model:** S21
- **Registration:** N46JH
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The owner’s (pilot) failure to properly torque a fuel filter b-nut fitting, which likely introduced air into the fuel system and resulted in a loss of engine power. Contributing to the loss of power was a missing restricted bypass line and a header tank vent line, which would have allowed the venting of air from the fuel system.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR22LA211) · AI Analytics · CC0 1.0*