# MACHINERY
> MSHA accident `220021400109` · 05/02/2002 · Tilden Mining Company L C
## 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:** ABRAS STONE,WHEEL GRINDER
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 19
- **Mine experience:** 21 years
## Operator
- **Controller:** U.S. Steel Canada; Cliffs Natural Resources Inc
- **Operator:** Tilden Mining Company L C
- **Mine:** [2000422](https://api.ai-analytics.org/mine/2000422)
## Narrative

EE WAS REPLACING THE LINER PLATE IN THE TRUCK BOX OF 1554. HE WAS IN THE PROCESS OF GRINDING OFF SOME WELD MARKS. HE WAS GRINDING FOR ABOUT 5 MINUTES USING A 1# GRINDER. AFTER GRINDING OFF THE THIRD AREA OF MARKS. EE WENT TO STAND UP AND FELT PAIN IN LOWER BACK. HE WAS EVALUATED BY A PHYSICIAN AND TAKEN OFF TO WORK.

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