# MACHINERY
> MSHA accident `220251960018` · 07/08/2025 · Canyon Fuel Company LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion NEC
- **Occupation:** Drill helper, Chuck tender
- **Activity:** Drill face, Rib, Side, Down
- **Injury source:** DRILL STEEL (ALL SIZES)
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** ABDOMEN/INTERNAL ORGANS
- **Days lost:** 1
- **Mine experience:** 1 years
## Operator
- **Controller:** Wolverine Fuels LLC
- **Operator:** Canyon Fuel Company LLC
- **Mine:** [4201566](https://api.ai-analytics.org/mine/4201566)
## Narrative

Working in a 2-man crew, driller opened rod clamp while chuck was not engaged with 300 ft of drill rod in the horizontal borehole. Water flow from the borehole pushed the free rods backwards into the helper behind the drill rig, striking their right side and causing bruising.

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