# HANDLING OF MATERIALS
> MSHA accident `220070360079` · 01/23/2007 · Central Pre-Mix Concrete Co
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Over-exertion NEC
- **Occupation:** Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer
- **Activity:** Machine maintenance
- **Injury source:** STEEL RAIL (ALL KINDS)
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 27
- **Mine experience:** 14 years
## Operator
- **Controller:** CRH PLC
- **Operator:** Central Pre-Mix Concrete Co
- **Mine:** [4500631](https://api.ai-analytics.org/mine/4500631)
## Narrative

While working on jaw crusher, employee put right leg over frame rail. His toe of the boot hung up on the frame and he twisted his knee.

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