# MACHINERY
> MSHA accident `220122140011` · 07/25/2012 · Colorado Stone Quarries, Inc.
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion NEC
- **Occupation:** Ledgeman/hand, Quarry man
- **Activity:** Handling supplies or material
- **Injury source:** HAND TOOLS,POWERED,NEC
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** KNEE/PATELLA
- **Days lost:** 3
- **Mine experience:** 0.17 years
## Operator
- **Controller:** Enrico L  Luciani
- **Operator:** Colorado Stone Quarries, Inc.
- **Mine:** [0504438](https://api.ai-analytics.org/mine/0504438)
## Narrative

Employee was lifting a Korfman chain saw with a hydraulic jack to level it for a cut.  He had the jack set in 2 inches of mud, and the jack tilted to one side when it took on the weight of the saw.  The machine came toward the wall and pinned him at the knee.  Injured left knee, chipped small piece of bone on patella, bruised knee area.

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