# SLIP OR FALL OF PERSON
> MSHA accident `220202600004` · 09/08/2020 · Calcium Products, LLC
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Prep plant foreman, Supervisor, Mill plant supervisor, Kiln supervisor
- **Activity:** Walking, Running
- **Injury source:** STEPS
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 20 years
## Operator
- **Controller:** Calcium Holdings Inc
- **Operator:** Calcium Products, LLC
- **Mine:** [1300049](https://api.ai-analytics.org/mine/1300049)
## Narrative

Stepped wrong descending staircase and twisted knee resulting in a sprain

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