# OTHER
> MSHA accident `220231160020` · 03/28/2023 · United States Steel Corp-Minnesota Ore Operations
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** OTHER
- **Accident type:** Bodily reaction, NEC
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Walking, Running
- **Injury source:** BODILY MOTION
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 4.77 years
## Operator
- **Controller:** USX Corp (United States Steel Corp)
- **Operator:** United States Steel Corp-Minnesota Ore Operations
- **Mine:** [2100282](https://api.morvs.ai/mine/2100282)
## Narrative

A Crusher Hybrid was replacing the second return roller from the head end on 002-12. Upon completion, the employee stood up and felt a pop in their right knee. THIS INCIDENT BECAME A RECORDABLE ON 4/17/23 WHEN THE EMPLOYEE RECEIVED TREATMENT.

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