# STEPPING OR KNEELING ON OBJECT
> MSHA accident `220083450020` · 12/07/2008 · BHP Copper Inc
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** STEPPING OR KNEELING ON OBJECT
- **Accident type:** Struck against stationary object
- **Occupation:** Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer
- **Activity:** Walking, Running
- **Injury source:** BROKEN ROCK,COAL,ORE,WSTE
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 1.31 years
## Operator
- **Controller:** Broken Hill Proprietary Company Ltd
- **Operator:** BHP Copper Inc
- **Mine:** [0201049](https://api.ai-analytics.org/mine/0201049)
## Narrative

Employee was walking and stepped on a loose rock causing him to twist his left knee

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