# HANDLING OF MATERIALS
> MSHA accident `220031250072` · 04/21/2003 · Trapper Mining Inc
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **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:** PASS CARS,PICKUP TRUCKS
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 13
- **Mine experience:** 3.26 years
## Operator
- **Controller:** Salt River Project; MidAmerican Energy Holdings Company; Tri-State Gener
- **Operator:** Trapper Mining Inc
- **Mine:** [0502838](https://api.ai-analytics.org/mine/0502838)
## Narrative

WASHING BEHIND THE SEAT OF EQUIPMENT, WITH HIS LEFT LEG BEHIND THE SEAT & HIS RIGHT LEG ON THE RIGHT SIDE OF SEAT, HIS KNEE WAS IN CONTACT WITHTHE BACK OF THE SEAT. HE MOVED JUST A LITTLE & FELT HIS RIGHT KNEE CAP BEING SHOVED DOWN

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