# MACHINERY
> MSHA accident `220231170024` · 04/19/2023 · Martin Marietta Materials Inc.
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** MACHINERY
- **Accident type:** Over-exertion NEC
- **Occupation:** Bull gang foreman, Labor foreman, Leadman, Section foreman, Shift boss
- **Activity:** Hand tools (powered)
- **Injury source:** HAND TOOLS,POWERED,NEC
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** HAND (NOT WRIST OR FINGERS)
- **Days lost:** 1
- **Mine experience:** 1.62 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials Inc.
- **Mine:** [2501300](https://api.ai-analytics.org/mine/2501300)
## Narrative

The employee was using a hammer drill at the primary crusher, the drill rotated unexpectedly.  This unexpected movement resulted in three fractures to the right hand.

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