# SLIP OR FALL OF PERSON
> MSHA accident `220252030030` · 07/18/2025 · United States Steel Corp-Minnesota Ore Operations
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Quality control technician, Laboratory technician, Laboratory assistant
- **Activity:** Environmental tests or checks
- **Injury source:** GROUND
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** —
- **Mine experience:** 6.38 years
## Operator
- **Controller:** USX Corp (United States Steel Corp)
- **Operator:** United States Steel Corp-Minnesota Ore Operations
- **Mine:** [2100820](https://api.morvs.ai/mine/2100820)
## Narrative

Employee was traveling to sample pellets from line 4 and about the climb stairway from basement level, when they slipped on the pellets and mud at the base of stairway and twisted their left knee.

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