# HANDLING OF MATERIALS
> MSHA accident `220170790010` · 03/06/2017 · Rockwell Mining, LLC
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Over-exertion in lifting objects
- **Occupation:** Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)
- **Activity:** Handling coal, Rock, Ore
- **Injury source:** BROKEN ROCK,COAL,ORE,WSTE
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** SHOULDERS (COLLARBONE/CLAVICLE/SCAPULA)
- **Days lost:** 0
- **Mine experience:** 0.77 years
## Operator
- **Controller:** Blackhawk Mining LLC
- **Operator:** Rockwell Mining, LLC
- **Mine:** [4609427](https://api.ai-analytics.org/mine/4609427)
## Narrative

Employee stated ee was bolting in the #4 entry on the #1 section when a rock fell on the mast. The employee tossed the rock off of the miner straining right shoulder. This incident resulted in restricted work activity.

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