# STEPPING OR KNEELING ON OBJECT
> MSHA accident `220072740013` · 09/18/2007 · Nyrstar Tennessee Mines, Strawberry Plains LLC
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** STEPPING OR KNEELING ON OBJECT
- **Accident type:** Struck against stationary object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **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:** 0.23 years
## Operator
- **Controller:** Tennessee Zinc Company LLC
- **Operator:** Nyrstar Tennessee Mines, Strawberry Plains LLC
- **Mine:** [4000170](https://api.morvs.ai/mine/4000170)
## Narrative

Employee stepped on a 4"" stone that rolled under his right foot. The action caused his right knee to twist resulting in injury. Employee is in therapy and light restrictions.

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