# SLIP OR FALL OF PERSON
> MSHA accident `220073540024` · 12/12/2007 · Lhoist North America of Arizona Inc.
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Pumper
- **Activity:** Walking, Running
- **Injury source:** STEPS
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 2.33 years
## Operator
- **Controller:** Lhoist Group
- **Operator:** Lhoist North America of Arizona Inc.
- **Mine:** [0201457](https://api.ai-analytics.org/mine/0201457)
## Narrative

Twisted right knee walking down stairs by #2 kiln pier.

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