# MACHINERY
> MSHA accident `220022730112` · 09/19/2002 · Trans Alta Centralia Mining LLC
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY 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:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** —
- **Mine experience:** 25.69 years
## Operator
- **Controller:** Trans Alta Corp
- **Operator:** Trans Alta Centralia Mining LLC
- **Mine:** [4500416](https://api.ai-analytics.org/mine/4500416)
## Narrative

OPERATOR ALLEGES WHILE OPERATING DOZER HE STRUCK A ROCK AND JARRED HIS BACK. HE BEGAN TO NOTICE PAIN IN LOW BACK LATER IN THE SHIFT.

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