# SLIP OR FALL OF PERSON
> MSHA accident `220150400040` · 01/28/2015 · Freeport McMoRan Corporation
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer
- **Activity:** Walking, Running
- **Injury source:** GROUND
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 9
- **Mine experience:** 0.29 years
## Operator
- **Controller:** Freeport-McMoRan Inc
- **Operator:** Freeport McMoRan Corporation
- **Mine:** [0201656](https://api.ai-analytics.org/mine/0201656)
## Narrative

Employee was walking on level ground when he stepped into a small, 3"" depression. The employee stated his knee twisted in an awkward manner resulting in a sprain of the medial collateral ligament.

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