# MACHINERY
> MSHA accident `220100200002` · 01/11/2010 · U.S. Silica Company, LLC
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** MACHINERY
- **Accident type:** Over-exertion NEC
- **Occupation:** Warehouseman, Bagger, Palletizer/Stacker, Store keeper, Packager, Fabricator, Cleaning plant operator
- **Activity:** Mill equipment
- **Injury source:** MACHINE-MILL,CLEANING PLT
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 42
- **Mine experience:** 41.69 years
## Operator
- **Controller:** USS Holdings Inc
- **Operator:** U.S. Silica Company, LLC
- **Mine:** [3603122](https://api.ai-analytics.org/mine/3603122)
## Narrative

While charging mill, one rod did not go in all the way. Operators did not look before starting the next rod. Once the next rod was moving, employee tried to stop it before it hit the rod that did not go in, causing his left knee to twist.

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