# MACHINERY
> MSHA accident `220041740037` · 06/13/2004 · —
## 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:** Grader
- **Injury source:** SURFACE MINING MACHINES
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 0
- **Mine experience:** 24 years
## Operator
- **Controller:** —
- **Operator:** —
- **Mine:** [4102632](https://api.ai-analytics.org/mine/4102632)
## Narrative

EE was operating a motor grader in the A2 benching operation. He caught a large rock with the blade and this caused him to bounce around in the cab. the rock was under the dirt and he did not see it before he contacted it. The bouncing motion caused him to strain his back on the left side.

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