# SLIP OR FALL OF PERSON
> MSHA accident `220022550033` · 08/28/2002 · CalMat Co
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman
- **Activity:** Machine maintenance
- **Injury source:** WORKING SURF OUTSIDE,NEC
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** —
- **Mine experience:** 9.73 years
## Operator
- **Controller:** Legacy Vulcan Corp (Form:Vulcan Materials Co)
- **Operator:** CalMat Co
- **Mine:** [0401924](https://api.ai-analytics.org/mine/0401924)
## Narrative

ADJUSTING A WATERVALVE, EMPLOYEE STEPPED DOWN ONTO A PLATFORM & TWISTED HIS RIGHT KNEE. HE WENT TO SEE COMPANY DOCTOR ON 8/29/02 & WAS PLACED ON RESTRICTED DUTY.

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