# SLIP OR FALL OF PERSON
> MSHA accident `220113430013` · 12/02/2011 · ICG Tygart Valley 
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Mason
- **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:** 0.15 years
## Operator
- **Controller:** Arch Resources Inc
- **Operator:** ICG Tygart Valley 
- **Mine:** [4609191](https://api.ai-analytics.org/mine/4609191)
## Narrative

Employee was putting valves in a des lime classifier during new construction and jumped down the corrugated deck flooring, causing him to twist his knee.

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