# SLIP OR FALL OF PERSON
> MSHA accident `220090550025` · 02/20/2009 · Mosaic Potash Carlsbad Inc
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Ledgeman/hand, Quarry man
- **Activity:** Walking, Running
- **Injury source:** STEPS
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 30 years
## Operator
- **Controller:** Mosaic Company
- **Operator:** Mosaic Potash Carlsbad Inc
- **Mine:** [2900802](https://api.ai-analytics.org/mine/2900802)
## Narrative

Employee was descending stairs at #4 loadout coming down from the screw deck. He stepped on the edge of the stair with his heel causing his right knee to jar (hyperextend) causing immediate pain. He was holding onto rails (3 point contact)  Placed on restrictions.

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