# MACHINERY
> MSHA accident `220130020014` · 12/21/2012 · Excel Mining, LLC.
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck by... NEC
- **Occupation:** Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)
- **Activity:** Roof bolter, Drilling
- **Injury source:** DRILL STEEL (ALL SIZES)
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** FACE,NEC
- **Days lost:** 5
- **Mine experience:** 0.08 years
## Operator
- **Controller:** Alliance Resource Partners LP
- **Operator:** Excel Mining, LLC.
- **Mine:** [1519515](https://api.ai-analytics.org/mine/1519515)
## Narrative

Employee was in the process of installing the outside roof bolt in the last row, he had just put the two pieces of drill steel together and was in the process of  starting to  drill while applying up pressure when the collar broke resulting in the bottom piece striking him on the left side of his face.

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