# MACHINERY
> MSHA accident `220240610004` · 02/20/2024 · U.S. Silica Company, LLC
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck by... NEC
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Hand tools (powered)
- **Injury source:** POWER SAW
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 9.81 years
## Operator
- **Controller:** USS Holdings Inc
- **Operator:** U.S. Silica Company, LLC
- **Mine:** [3400377](https://api.ai-analytics.org/mine/3400377)
## Narrative

A loose branch fell from an adjacent tree and struck an idling chainsaw the employee was holding. This caused the chainsaw to shift and strike the employee's left knee, resulting in three lacerations. The employee was taken to a medical clinic, where sutures were used to close the lacerations.

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