# HANDLING OF MATERIALS
> MSHA accident `220151390023` · 05/15/2015 · Freeport-McMoRan Sierrita Ops.
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Struck by... NEC
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Machine maintenance
- **Injury source:** HAND TOOLS,POWERED,NEC
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** ARM,NEC
- **Days lost:** 9
- **Mine experience:** 0.98 years
## Operator
- **Controller:** Freeport-McMoRan Inc
- **Operator:** Freeport-McMoRan Sierrita Ops.
- **Mine:** [0200144](https://api.ai-analytics.org/mine/0200144)
## Narrative

Employees were using a ram to hit a head nut to remove it from a main shaft.  Injured employee was on the right side of ram when they hit the head nut with the ram, it turned the head nut allowing the ram to swing past the head nut.  The ram then swung back and hit the main shaft & then hit the surge bin wall, then hit the employee in the right arm. EE sustained fractured arm.

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