# MACHINERY
> MSHA accident `220041130020` · 03/26/2004 · United States Steel Corp-Minnesota Ore Operations
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **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:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 0
- **Mine experience:** 2.88 years
## Operator
- **Controller:** USX Corp (United States Steel Corp)
- **Operator:** United States Steel Corp-Minnesota Ore Operations
- **Mine:** [2100819](https://api.ai-analytics.org/mine/2100819)
## Narrative

On 3-26-04 the miner was in a man basket using an impact wrench to tighten bolts and felt a pain. Became aware of chiropractic treatment on 4-16-04.

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