# MACHINERY
> MSHA accident `220121990024` · 07/13/2012 · L.G. Everist, Inc.
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion NEC
- **Occupation:** Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer
- **Activity:** Hand tools (powered)
- **Injury source:** HAND TOOLS,POWERED,NEC
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 0.08 years
## Operator
- **Controller:** L G Everist Inc
- **Operator:** L.G. Everist, Inc.
- **Mine:** [3900258](https://api.ai-analytics.org/mine/3900258)
## Narrative

Employee was loosening jaw die bolts using 1"" impact, slipped and lost control of impact causing him to twist his body injuring his knee.

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