# SLIP OR FALL OF PERSON
> MSHA accident `220102710023` · 08/24/2010 · Humphreys Enterprises Inc
## 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:** Machine maintenance
- **Injury source:** GROUND
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 8
- **Mine experience:** 23.54 years
## Operator
- **Controller:** William D  Humphreys
- **Operator:** Humphreys Enterprises Inc
- **Mine:** [4405217](https://api.ai-analytics.org/mine/4405217)
## Narrative

Employee stated that he was working on a D10 dozer. As he reached to get tools, his foot slipped/stumbled on some small rocks laying on ground causing him to twist his right knee. Not reportable until he lost work on 9/15/10 due to doctor visit and starting 9/24/10 due to orthoscopic surgery on his right knee.

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