# SLIP OR FALL OF PERSON
> MSHA accident `220260990010` · 03/31/2026 · Arizona Materials
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman
- **Activity:** Handling supplies or material
- **Injury source:** FLOOR,WALKING SURF-NOT UG
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 1.81 years
## Operator
- **Controller:** Summit Materials LLC
- **Operator:** Arizona Materials
- **Mine:** [0202867](https://api.ai-analytics.org/mine/0202867)
## Narrative

While cleaning in the wash plant tunnel, employee slipped on aggregate material on the floor and hurt EE's knee. EE requested to be evaluated at the occupational clinic where they prescribed restrictions along with medication for the knee injury.

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