# MACHINERY
> MSHA accident `220083450037` · 12/02/2008 · Tata Chemicals (Soda Ash) Partners LLC
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion NEC
- **Occupation:** Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)
- **Activity:** Roof bolter, Drilling
- **Injury source:** UNDERGRD MINING MACHINES
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 0
- **Mine experience:** 0.27 years
## Operator
- **Controller:** Tata Chemicals Ltd
- **Operator:** Tata Chemicals (Soda Ash) Partners LLC
- **Mine:** [4800155](https://api.ai-analytics.org/mine/4800155)
## Narrative

Employee was drilling hole with fewer bolter when rotation stopped, and steel was stuck. He let go of trigger and bulter dropped and swung toward the rib. He then attempted to grab the bolter at which he then felt a pull in his lower back.

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