# MACHINERY
> MSHA accident `220151000044` · 04/03/2015 · Knife River Corporation-North Central
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** MACHINERY
- **Accident type:** Struck by falling object
- **Occupation:** Crusher attendant/operator, Pan feeder operator/worker
- **Activity:** Hand tools (powered)
- **Injury source:** METAL COVERS & GUARDS
- **Nature of injury:** CRUSHING
- **Body part:** ARM,NEC
- **Days lost:** 0
- **Mine experience:** 1 years
## Operator
- **Controller:** MDU Resources Group Inc
- **Operator:** Knife River Corporation-North Central
- **Mine:** [3200778](https://api.ai-analytics.org/mine/3200778)
## Narrative

Injured employee was removing bolts from a belt frame on a crusher screen.  He had his arm underneath the frame piece when the final bolt was removed the frame piece fell pinching his arm between the piece and the box.  He went to the emergency room and was given a prescription and released back to full duty.

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