# HANDLING OF MATERIALS
> MSHA accident `220140710026` · 03/03/2014 · Essroc Cement Corp.
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Over-exertion in lifting objects
- **Occupation:** Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer
- **Activity:** Hand tools (powered)
- **Injury source:** DRIL-PRCUSV,HRD ROC,JKHMR
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 0
- **Mine experience:** 41.13 years
## Operator
- **Controller:** Italcementi Spa
- **Operator:** Essroc Cement Corp.
- **Mine:** [3600190](https://api.ai-analytics.org/mine/3600190)
## Narrative

The employee was unplugging one of the feeders in 117 tunnel using a jackhammer.  The employee was positioned on the feeder platform, and was placing the jackhammer bit above the vibrating feeder to break up frozen chunks of rock when he felt a pop in his lower back.

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