# SLIP OR FALL OF PERSON
> MSHA accident `220071200003` · 04/25/2007 · Chevron Mining Inc
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman
- **Activity:** Handling supplies or material
- **Injury source:** COAL & PETROL PRODUCT,NEC
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 0.12 years
## Operator
- **Controller:** Chevron Corporation
- **Operator:** Chevron Mining Inc
- **Mine:** [2900096](https://api.ai-analytics.org/mine/2900096)
## Narrative

Employee jumped onto a cribbing mat to help unload boards and slipped on grease causing him to twist his (L) knee. Treatment involved modified work as of 4/26/07 and a knee brace.

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