# MACHINERY
> MSHA accident `220121250001` · 04/21/2012 · Kopper Glo Mining, LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion NEC
- **Occupation:** Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)
- **Activity:** Roof bolter, Inserting bolt
- **Injury source:** ROOF (ROCK) BOLTS
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** WRIST
- **Days lost:** 52
- **Mine experience:** 0.06 years
## Operator
- **Controller:** Quintana Capital Group GP Ltd
- **Operator:** Kopper Glo Mining, LLC
- **Mine:** [4003365](https://api.ai-analytics.org/mine/4003365)
## Narrative

Employee was installing a roof bolt and bent it. While trying to straighten it, he hit the rotation lever and spun the bolt twisting left wrist.

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