# MACHINERY
> MSHA accident `220093580010` · 12/21/2009 · Sherwin Alumina Company, LLC
## 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:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 0
- **Mine experience:** 10.06 years
## Operator
- **Controller:** Sherwin Alumina LLC
- **Operator:** Sherwin Alumina Company, LLC
- **Mine:** [4100906](https://api.ai-analytics.org/mine/4100906)
## Narrative

Employee was using a scaling gun at 30-7 sump. The bit got stuck in scale. As he attempted to pull the bit out of the scale, he felt a pop in his lower back.  Lower back strain; placed on restricted duty.

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