# HANDLING OF MATERIALS
> MSHA accident `220162450010` · 08/25/2016 · Rockwell Mining LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** HANDLING OF MATERIALS
- **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:** SHOULDERS (COLLARBONE/CLAVICLE/SCAPULA)
- **Days lost:** 21
- **Mine experience:** 0.38 years
## Operator
- **Controller:** Blackhawk Mining LLC
- **Operator:** Rockwell Mining LLC
- **Mine:** [4609152](https://api.ai-analytics.org/mine/4609152)
## Narrative

Employee stated EE was installing a bolt into the rib. EE drilled the hole and was inserting a 6' bolt into the hole when the bolt hit a crack and came to a sudden stop. The employee stated that EE's left shoulder was strained. The incident resulted in a strain and lost work days. 

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