# MACHINERY
> MSHA accident `220051260023` · 04/22/2005 · Pine Ridge Coal Company 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:** SPRAIN,STRAIN RUPT DISC
- **Body part:** WRIST
- **Days lost:** 3
- **Mine experience:** 9.75 years
## Operator
- **Controller:** Peabody Energy Corporation
- **Operator:** Pine Ridge Coal Company LLC
- **Mine:** [4607908](https://api.ai-analytics.org/mine/4607908)
## Narrative

Employee stated that he was installing a roof bolt in No.2 entry, when he bent the roof bolt he was attempting to install. EE was trying to retrieve the roof bolt back out of the hole by using his rotation on the roof bolter. When doing so, the roof bolt turned while his right hand was on the roof bolt jerking his right hand and causing pain to right wrist.

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