# MACHINERY
> MSHA accident `220171280025` · 04/22/2017 · Greenbrier Minerals, LLC
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** MACHINERY
- **Accident type:** Struck by... NEC
- **Occupation:** Electrician, Lineman
- **Activity:** Roof bolter, Drilling
- **Injury source:** DRILL STEEL (ALL SIZES)
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** MOUTH/LIP/TEETH/TONGUE/THROAT/TASTE
- **Days lost:** 0
- **Mine experience:** 1.12 years
## Operator
- **Controller:** Coronado Coal LLC
- **Operator:** Greenbrier Minerals, LLC
- **Mine:** [4609319](https://api.ai-analytics.org/mine/4609319)
## Narrative

Employee switched out with the other roof bolter operator when a piece of drill steel came apart, bounced and hit the drill pot when the steel hit the employee in the mouth which resulted in tooth being chipped (fractured).

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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*