# MACHINERY
> MSHA accident `220061530014` · 05/30/2006 · Almatis Inc
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion NEC
- **Occupation:** Warehouseman, Bagger, Palletizer/Stacker, Store keeper, Packager, Fabricator, Cleaning plant operator
- **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:** 1.48 years
## Operator
- **Controller:** Almatis Holdings 1 BV
- **Operator:** Almatis Inc
- **Mine:** [0300257](https://api.ai-analytics.org/mine/0300257)
## Narrative

Miner was using impact wrench to loosen bolts on South Door of 55 Mill.  Bolt became stuck and resulting repeated jerking motion of impact wrench, body posturing being bent low, and fatigue from removing 4 other bolts,  caused a strain to the lumbar region of his back.

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