# HANDTOOLS (NONPOWERED)
> MSHA accident `220213560007` · 12/13/2021 · CalMat Co
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** HANDTOOLS (NONPOWERED)
- **Accident type:** Struck by flying object
- **Occupation:** Master mechanic, Foreman, Supervisor
- **Activity:** Machine maintenance
- **Injury source:** WRENCH
- **Nature of injury:** CONCUSSION-BRAIN,CEREBRAL
- **Body part:** BRAIN
- **Days lost:** 2
- **Mine experience:** 1.96 years
## Operator
- **Controller:** Vulcan Materials Company
- **Operator:** CalMat Co
- **Mine:** [2901475](https://api.ai-analytics.org/mine/2901475)
## Narrative

A water pump in the pond was being replaced by 6 employees. One employee was holding a 48"" pipe wrench holding the shaft in place. Another employee was using a 36"" pipe wrench to turn the shaft to break it free. As the employee turned the shaft, the employee holding the pipe wrench lost grip and the tool swung around coming off striking an employee in the head above left ear.

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