# NTSB Accident CEN13FA121
> **EUROCOPTER EC130 B4** · 2013-01-02 · Seminole, OK, USA · SERS
## Event
- **NTSB number:** CEN13FA121
- **Event ID:** 20130102X73050
- **Type:** Accident
- **Date:** 2013-01-02
- **Location:** Seminole, OK, USA
- **Coordinates:** 35.30722, -96.580558
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 4
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 4
## Aircraft
- **Make:** EUROCOPTER
- **Model:** EC130 B4
- **Registration:** N334AM
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The loss of engine power due to ice ingestion. Contributing to the accident was maintenance personnel’s delayed decision to install the helicopter's engine inlet cover until after the engine had been exposed to moisture and freezing temperatures and their inadequate daily preflight/airworthiness checks, which did not detect the ice formation.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN13FA121) · AI Analytics · CC0 1.0*