# HANDLING OF MATERIALS
> MSHA accident `220180530008` · 02/12/2018 · Sand Products, WI, LLC
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Struck against stationary object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Machine maintenance
- **Injury source:** MACHINE-MILL,CLEANING PLT
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 0
- **Mine experience:** 0.46 years
## Operator
- **Controller:** Jim  McMahon; Brad  Thompson
- **Operator:** Sand Products, WI, LLC
- **Mine:** [4703717](https://api.ai-analytics.org/mine/4703717)
## Narrative

Employee was loosening a jam nut on a Rotex arm when the jam nut unexpectedly broke free causing the employees hand to slam forward into the rotex arm.  

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