# SLIP OR FALL OF PERSON
> MSHA accident `220092190008` · 06/02/2009 · Black Hills Bentonite-A Limited Liability Co
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Electrician, Lineman
- **Activity:** Walking, Running
- **Injury source:** FLOOR,WALKING SURF-NOT UG
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 24
- **Mine experience:** 14.31 years
## Operator
- **Controller:** Thomas A  Thorson
- **Operator:** Black Hills Bentonite-A Limited Liability Co
- **Mine:** [4800987](https://api.ai-analytics.org/mine/4800987)
## Narrative

EE was entering building, stepped down and slipped on wet bentonite, twisting left knee.  EE continued to work and had no lost days of time until EE's surgery on 08/04/2009.

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