# MACHINERY
> MSHA accident `220200020018` · 12/23/2019 · Ash Grove Cement Company
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion NEC
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Hand tools (powered)
- **Injury source:** HAND TOOLS,POWERED,NEC
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 0
- **Mine experience:** 31.38 years
## Operator
- **Controller:** CRH PLC
- **Operator:** Ash Grove Cement Company
- **Mine:** [2400015](https://api.ai-analytics.org/mine/2400015)
## Narrative

EE was removing a liner bolt with an impact drill, when the drill slipped EE grabbed the drill by the socket, the split pin holding the head in place on the socket backed out 1/32"" catching EE's glove & twisting EE's hand, breaking the sesamoid bone in the left thumb.  EE went to the doctor on 12-30-19 where it was determined EE had a broken bone.

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