# SLIP OR FALL OF PERSON
> MSHA accident `220120380044` · 07/18/2011 · Energy West Mining Company
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Climb in piled material
- **Injury source:** MINE FLOOR,BOTTOM,FOOTWAL
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 27
- **Mine experience:** 34.54 years
## Operator
- **Controller:** MidAmerican Energy Holdings Company
- **Operator:** Energy West Mining Company
- **Mine:** [4200121](https://api.ai-analytics.org/mine/4200121)
## Narrative

On 7-18-11 employee was stepping down off a gob pile and the material shifted causing him to twist his right knee. He continued to work but his knee never healed. On 1-30-12 he had to have surgery to repair his knee.

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