# HANDLING OF MATERIALS
> MSHA accident `220180540021` · 12/17/2017 · Knight Hawk Coal, 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, NEC
- **Injury source:** MINE FLOOR,BOTTOM,FOOTWAL
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 49
- **Mine experience:** 2.23 years
## Operator
- **Controller:** Arch Coal Inc.; Franklin D.  Robertson; James O.  Bunn
- **Operator:** Knight Hawk Coal, LLC
- **Mine:** [1103147](https://api.ai-analytics.org/mine/1103147)
## Narrative

Employee strained EE's left knee while installing resin in a roof bolt hole. EE continued working until EE had surgery on 2-22-2018.

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