# MACHINERY
> MSHA accident `220183480020` · 12/11/2018 · Hanson Material Service
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion NEC
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Hand tools (powered)
- **Injury source:** HAND TOOLS,POWERED,NEC
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 0
- **Mine experience:** 0.37 years
## Operator
- **Controller:** Heidelberg Materials AG
- **Operator:** Hanson Material Service
- **Mine:** [1102814](https://api.ai-analytics.org/mine/1102814)
## Narrative

A mechanic sustained an injury to the tip of ee middle finger on ee right hand while replacing the hammer on the rock breaker. The finger was injured when it was caught between the hammer and pin as ee was attempting to line up the pin.

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