# STEPPING OR KNEELING ON OBJECT
> MSHA accident `220103340011` · 11/28/2010 · Mosaic Potash Carlsbad 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:** 0.54 years
## Operator
- **Controller:** Mosaic Company
- **Operator:** Mosaic Potash Carlsbad Inc
- **Mine:** [2900802](https://api.ai-analytics.org/mine/2900802)
## Narrative

Operator car stalled, emp. got out of the car to check breaker. When returning to  car emp. stepped on a rock and lost his balance, his left knee shifted and popped. Emp. did not fall. Later when trying to stand up in ram car  to get out, left knee buckled again.

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