# MACHINERY
> MSHA accident `220062280018` · 08/11/2006 · BHP Navajo Coal Company
## 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:** WRIST
- **Days lost:** 2
- **Mine experience:** 6.62 years
## Operator
- **Controller:** BHP Billiton
- **Operator:** BHP Navajo Coal Company
- **Mine:** [2900097](https://api.ai-analytics.org/mine/2900097)
## Narrative

Employee was operating a D10 dozer to lower the face height and push down large rocks from the cap rock for the loader.  The operator was developing a key cut against the highwall side when he struck a large rock that caused the blade to skim over and as the tracks advanced, the dozer tipped over on its side.

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