# SLIP OR FALL OF PERSON
> MSHA accident `220131190004` · 04/16/2013 · Matrix Energy LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)
- **Activity:** Walking, Running
- **Injury source:** MINE FLOOR,BOTTOM,FOOTWAL
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 2
- **Mine experience:** 9 years
## Operator
- **Controller:** James H  Booth
- **Operator:** Matrix Energy LLC
- **Mine:** [1518575](https://api.ai-analytics.org/mine/1518575)
## Narrative

Employee was walking towards the roof bolter when he stepped in a hole and twisted his right knee.

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