# MACHINERY
> MSHA accident `220082690025` · 09/22/2008 · Asarco 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 (not powered)
- **Injury source:** HAND TOOLS,POWERED,NEC
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** HAND (NOT WRIST OR FINGERS)
- **Days lost:** 2
- **Mine experience:** 0.38 years
## Operator
- **Controller:** Grupo Mexico S A B de C V
- **Operator:** Asarco LLC
- **Mine:** [0200150](https://api.ai-analytics.org/mine/0200150)
## Narrative

EE was replacing bolts on the screen deck at the concentrator, when he said the impact wrench he was using stuck in the on position and twisted his hand.

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