# STEPPING OR KNEELING ON OBJECT
> MSHA accident `220073600096` · 09/26/2007 · Black Wolf Coal Company Inc
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** STEPPING OR KNEELING ON OBJECT
- **Accident type:** Struck against stationary object
- **Occupation:** Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)
- **Activity:** Roof bolter, NEC
- **Injury source:** BROKEN ROCK,COAL,ORE,WSTE
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 24
- **Mine experience:** 4.62 years
## Operator
- **Controller:** Severstal Resources
- **Operator:** Black Wolf Coal Company Inc
- **Mine:** [3608746](https://api.ai-analytics.org/mine/3608746)
## Narrative

The employee slipped on a rock and twisted his right knee on 9/26/07. He continued working until 12/19/07 when he visited a surgeon that recommended time away from work.

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