# STEPPING OR KNEELING ON OBJECT
> MSHA accident `220072220061` · 08/03/2007 · Matrix Energy LLC
## 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:** ANKLE
- **Days lost:** 1
- **Mine experience:** 1 years
## Operator
- **Controller:** James H  Booth
- **Operator:** Matrix Energy LLC
- **Mine:** [1518575](https://api.ai-analytics.org/mine/1518575)
## Narrative

He was roof bolting top when he stepped on a piece of coal and twisted his right ankle.

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