# MACHINERY
> MSHA accident `220181790043` · 06/20/2018 · Blue Creek Mining LLC
## 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:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 0
- **Mine experience:** 1.48 years
## Operator
- **Controller:** Blackhawk Mining LLC
- **Operator:** Blue Creek Mining LLC
- **Mine:** [4609296](https://api.ai-analytics.org/mine/4609296)
## Narrative

Employee stated was installing a bolt into the mine roof and turned to grab the joystick on the roof bolting machine.  When EE twisted to grab the joystick, EE felt a muscle spasm in the left side of lower back.

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