# STEPPING OR KNEELING ON OBJECT
> MSHA accident `220122580019` · 09/05/2012 · Martin Marietta Materials
## 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:** LOOSE DIRT AND MUD
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 4 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials
- **Mine:** [0504531](https://api.ai-analytics.org/mine/0504531)
## Narrative

On 9/5/2012 the EE was walking down from the fuel tank to the fueling station when he stepped on some loose material and twisted his knee.

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