# STEPPING OR KNEELING ON OBJECT
> MSHA accident `220243180022` · 11/08/2024 · Freeport-McMoRan Sierrita Ops.
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** STEPPING OR KNEELING ON OBJECT
- **Accident type:** Struck against stationary object
- **Occupation:** Crusher attendant/operator, Pan feeder operator/worker
- **Activity:** Walking, Running
- **Injury source:** BROKEN ROCK,COAL,ORE,WSTE
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** ANKLE
- **Days lost:** 0
- **Mine experience:** 1.77 years
## Operator
- **Controller:** Freeport-McMoRan Inc
- **Operator:** Freeport-McMoRan Sierrita Ops.
- **Mine:** [0200144](https://api.morvs.ai/mine/0200144)
## Narrative

EE had completed a change out of an idler. EE was walking down the grated walkway when EE stepped on a rock in the grating and twisted right ankle. EE sustained a right ankle sprain. EE was issued restrictions.

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