# MACHINERY
> MSHA accident `220090560016` · 02/18/2009 · Birch River Energy, LLC
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** MACHINERY
- **Accident type:** Struck by... 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:** 3 years
## Operator
- **Controller:** Alpha Natural Resources, Inc.
- **Operator:** Birch River Energy, LLC
- **Mine:** [4609036](https://api.ai-analytics.org/mine/4609036)
## Narrative

Employee was using a 10 ton porta power to reinstall the drive chain on the drive sprocket.  The porta power worked loose and struck the employee on the left thumb.

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