# HANDLING OF MATERIALS
> MSHA accident `220080140041` · 12/20/2007 · Freeport-McMoRan Sierrita Ops.
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Over-exertion NEC
- **Occupation:** Warehouseman, Bagger, Palletizer/Stacker, Store keeper, Packager, Fabricator, Cleaning plant operator
- **Activity:** Getting on or off equipment
- **Injury source:** WORKING SURF OUTSIDE,NEC
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 45
- **Mine experience:** 3.73 years
## Operator
- **Controller:** Freeport-McMoRan Inc
- **Operator:** Freeport-McMoRan Sierrita Ops.
- **Mine:** [0200144](https://api.ai-analytics.org/mine/0200144)
## Narrative

On 12/20/07 employee mentioned to his supervisor that he stepped off the locomotive and felt his knee twist. He continued to work and did not seek medical attention. On 1/8/08 he informed his supervisor that his personal physician stated he may have seriously injured his knee. At that time we sent him for evaluation. His restrictions caused him to be put in a no work status.

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