# HANDTOOLS (NONPOWERED)
> MSHA accident `220253170109` · 09/17/2025 · Pinto Valley Mining Corp.
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** HANDTOOLS (NONPOWERED)
- **Accident type:** Struck by... NEC
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Hand tools (not powered)
- **Injury source:** AXE,HAMMER,SLEDGE
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** KNEE/PATELLA
- **Days lost:** —
- **Mine experience:** 4.35 years
## Operator
- **Controller:** Capstone Copper Corp
- **Operator:** Pinto Valley Mining Corp.
- **Mine:** [0201049](https://api.ai-analytics.org/mine/0201049)
## Narrative

A maintenance mechanic was inside the discharge chute of Ball Mill #5 and was using a 12-pound sledgehammer to break a chute liner loose when EE's footing slipped mid swing and the hammer hit EE's right knee causing a chip fracture.

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