# HANDLING OF MATERIALS
> MSHA accident `220193230021` · 11/13/2019 · Boxley Materials Company
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Struck by falling object
- **Occupation:** Drill operator
- **Activity:** Handling supplies or material
- **Injury source:** SURFACE MINING MACHINES
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** ANKLE
- **Days lost:** 10
- **Mine experience:** — years
## Operator
- **Controller:** Summit Materials LLC
- **Operator:** Boxley Materials Company
- **Mine:** [4400061](https://api.ai-analytics.org/mine/4400061)
## Narrative

Employee was attempting to set a drill from vertical drilling to horizontal. The drill mast was laid back toward the power section at about a 45 degree angle.  A pin was placed in the hydraulic positioning cylinder to hold the mast in place. The locking pin fell out allowing the mast to swing downward toward the ground.  The mast swung down striking the employee in the lower leg. 

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