# NTSB Accident CEN19LA156
> **Rockwell S 2R** · 2019-05-25 · Oakes, ND, USA · NONE
## Event
- **NTSB number:** CEN19LA156
- **Event ID:** 20190528X53638
- **Type:** Accident
- **Date:** 2019-05-25
- **Location:** Oakes, ND, USA
- **Coordinates:** 46.096942, -97.919441
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** Rockwell
- **Model:** S 2R
- **Registration:** N4907X
- **FAR Part:** 137
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The failure of the helical cam gear of the engine assembly due to fatigue cracks in the gear teeth, which resulted in a total loss of engine power.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN19LA156) · AI Analytics · CC0 1.0*