# MACHINERY
> MSHA accident `220102920006` · 10/14/2010 · Armstrong Coal Company Inc
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY 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:** UNDERGRD MINING MACHINES
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** SHOULDERS (COLLARBONE/CLAVICLE/SCAPULA)
- **Days lost:** 0
- **Mine experience:** 0.31 years
## Operator
- **Controller:** Armstrong Energy Inc
- **Operator:** Armstrong Coal Company Inc
- **Mine:** [1518552](https://api.ai-analytics.org/mine/1518552)
## Narrative

Employee was installing a 9 ft cable bolt and felt his right shoulder pop.

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