# HANDLING OF MATERIALS
> MSHA accident `220210740013` · 03/04/2021 · Tilden Mining Company L C
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Struck by flying object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Machine maintenance
- **Injury source:** METAL,NEC(PIPE,WIRE,NAIL)
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** SHOULDERS (COLLARBONE/CLAVICLE/SCAPULA)
- **Days lost:** 86
- **Mine experience:** 10.5 years
## Operator
- **Controller:** Cleveland-Cliffs Inc
- **Operator:** Tilden Mining Company L C
- **Mine:** [2000422](https://api.ai-analytics.org/mine/2000422)
## Narrative

Plant repairmen were working on the 12A Deslime Thickener secondary drive. During disassembly of the thickener drive there was stored energy present. When the drive mounting bolts were removed the drive rotated suddenly, striking the employee. Employee was seen by on-site EMS, NP and transported to UP Health System via ambulance. 

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