# SLIP OR FALL OF PERSON
> MSHA accident `220171510015` · 05/07/2017 · Black Castle Mining Company, LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **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:** Walking, Running
- **Injury source:** LOOSE DIRT AND MUD
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 171
- **Mine experience:** 5 years
## Operator
- **Controller:** Alpha Natural Resources Holdings, Inc
- **Operator:** Black Castle Mining Company, LLC
- **Mine:** [4607938](https://api.ai-analytics.org/mine/4607938)
## Narrative

Employee stepped off the stairway onto the ground. When ee stepped with left foot, it slipped in the mud and ee felt a ""pop"" in knee. EE continued to work until 5/25/2017 when ee was diagnosed with a torn meniscus.

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