# MACHINERY
> MSHA accident `220111020008` · 02/08/2011 · Birch River Energy, LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK 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:** SPRAIN,STRAIN RUPT DISC
- **Body part:** SHOULDERS (COLLARBONE/CLAVICLE/SCAPULA)
- **Days lost:** 152
- **Mine experience:** 6 years
## Operator
- **Controller:** Alpha Natural Resources, Inc.
- **Operator:** Birch River Energy, LLC
- **Mine:** [4606045](https://api.ai-analytics.org/mine/4606045)
## Narrative

Employee started missing days from work on 4/4/11 from a previous injury.  Employee stated he was using a hydraulic wrench to remove 2.5 inch bolts which attaches the vibrating box to a feeder.  Employee states that the hydraulic wrench slipped from a bolt and he strained the left shoulder while attempting to catch the wrench.

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