# NTSB Accident WPR17LA133
> **EUROCOPTER EC 130 B4** · 2017-06-27 · Boulder City, NV, USA · MINR
## Event
- **NTSB number:** WPR17LA133
- **Event ID:** 20170627X05548
- **Type:** Accident
- **Date:** 2017-06-27
- **Location:** Boulder City, NV, USA
- **Coordinates:** 35.967498, -114.892219
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 2
- **Uninjured:** 5
- **Total aboard:** 7
## Aircraft
- **Make:** EUROCOPTER
- **Model:** EC 130 B4
- **Registration:** N151GC
- **FAR Part:** 135
- **Engines:** —
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A loss of engine power due to the failure of the manufacturer to reinstall the oil filter after it was removed for inspection, which led to coke pollution that obstructed the oil jet and resulted in the subsequent oil starvation of the axial compressor rear bearing oil and its subsequent failure.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR17LA133) · AI Analytics · CC0 1.0*