# HANDLING OF MATERIALS
> MSHA accident `220020140087` · 12/27/2001 · Columbia Quarry Company
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Over-exertion NEC
- **Occupation:** Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman
- **Activity:** Machine maintenance
- **Injury source:** MACHINE-MILL,CLEANING PLT
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** SHOULDERS (COLLARBONE/CLAVICLE/SCAPULA)
- **Days lost:** —
- **Mine experience:** 21.51 years
## Operator
- **Controller:** Clyde D  Trexler
- **Operator:** Columbia Quarry Company
- **Mine:** [1100039](https://api.ai-analytics.org/mine/1100039)
## Narrative

THE PLANT WAS SHUT DOWN TO PERFORM A MAINTENANCE REPAIR ON SCREEN #11, 6' X 12' PIONEER 3-DECK SIZING SCREEN. THE REPAIR INVOLVED DISASSEMBLY OF THE POWER BEARING HOUSING. AFTER THE EQUIPMENT WAS LOCKED OUT, HE ACCESSED THE INTERNAL SCREEN FRAME THROUGH AN ACCESS OPENING IN THE PORDUCT CHUTES. DURING THIS ACCESSING, HE STRAINED HIS RIGHT ARM/SHOULDER WHILE PULLING HIMSELF INTO POSI

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