# MACHINERY
> MSHA accident `220170340010` · 01/26/2017 · Milestone Materials Division of Mathy Construction
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck against a moving object
- **Occupation:** Backhoe operator, Trackhoe operator
- **Activity:** Power shovel, Dragline
- **Injury source:** SURFACE MINING MACHINES
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 5
- **Mine experience:** 12.77 years
## Operator
- **Controller:** Mathy Construction Company
- **Operator:** Milestone Materials Division of Mathy Construction
- **Mine:** [4703609](https://api.ai-analytics.org/mine/4703609)
## Narrative

Jarring motion of digging hard rock over the course of the day caused lower back pain.

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