# SLIP OR FALL OF PERSON
> MSHA accident `220001850071` · 06/26/2000 · Pioneer Concrete Of Arizona Inc
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Front-end loader, Scraper-loader operator, Pan operator, Payloader, Scraper rig operator
- **Activity:** Machine maintenance
- **Injury source:** MACHINE-MILL,CLEANING PLT
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 38
- **Mine experience:** 2 years
## Operator
- **Controller:** Pioneer International Ltd
- **Operator:** Pioneer Concrete Of Arizona Inc
- **Mine:** [0202126](https://api.ai-analytics.org/mine/0202126)
## Narrative

JAW CRUSHER WAS NOT TAKING FULL FEED. EE EXITED LOADER TO CHECK CRUSHER CHAMBER AND AFTER NOTICING A TREE ROOT INSIDE, CLIMBED DOWN, LOCKED IT OUT AND CLIMBED BACK UP ON PLATFORM TO FREE ROOT. HE HAD DIFFICULTY, SO CLIMBED IN JAW AND SLID DOWN, CATCHING BOOT AND LODGING LEF IN JAW. TWISTED LEFT KNEE AND HEARD IT POP.

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