# MACHINERY
> MSHA accident `220072080034` · 06/08/2007 · Black Hills Bentonite
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck against a moving object
- **Occupation:** Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer
- **Activity:** Bulldozer
- **Injury source:** SURFACE MINING MACHINES
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** SHOULDERS (COLLARBONE/CLAVICLE/SCAPULA)
- **Days lost:** 5
- **Mine experience:** 27.35 years
## Operator
- **Controller:** Thomas A  Thorson
- **Operator:** Black Hills Bentonite
- **Mine:** [4800954](https://api.ai-analytics.org/mine/4800954)
## Narrative

Employee was running dozer in reverse, resting right arm on rest when a rock fell in behind track, causing jolt to right shoulder as machine raised then came down hard.  He thought shoulder would get better, waited a couple of weeks, a torn rotator cuff was verified-requiring surgery on July 9, 2007.

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