# MACHINERY
> MSHA accident `220113610012` · 12/21/2011 · Cal Sierra Development Inc
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **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:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** HEAD,NEC
- **Days lost:** 0
- **Mine experience:** 4.17 years
## Operator
- **Controller:** Jemco LLC
- **Operator:** Cal Sierra Development Inc
- **Mine:** [0402386](https://api.ai-analytics.org/mine/0402386)
## Narrative

While operating our D-9 Cat removing down tree the cat rolled up on a log and then rolled off causing the Cat to travel fast and hit hard throwing operator out of seat then hitting operators head on bar on cab cutting his head.

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