# SLIP OR FALL OF PERSON
> MSHA accident `220170460024` · 02/06/2017 · Marfork Coal Company, LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Fall onto or against objects
- **Occupation:** Examiner, Fire boss, Pre-shift examiner, Mine examiner
- **Activity:** Handling supplies or material
- **Injury source:** BLOCKING
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** KNEE/PATELLA
- **Days lost:** 22
- **Mine experience:** 0.23 years
## Operator
- **Controller:** Alpha Natural Resources Holdings, Inc
- **Operator:** Marfork Coal Company, LLC
- **Mine:** [4609048](https://api.ai-analytics.org/mine/4609048)
## Narrative

Employee was blocking up track switch with crib blocks.  While maneuvering around the switch EE stepped on a crib block and turned ankle.  After turning ankle, EE stumbled and struck knee on the crib block as EE fell.  

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