# SLIP OR FALL OF PERSON
> MSHA accident `220183090030` · 10/31/2018 · Quikrete Construction Materials, LLC
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Fall to the walkway or working surface
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Observe operations
- **Injury source:** GROUND
- **Nature of injury:** UNCLASSIFIED,NOT DETERMED
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 0.02 years
## Operator
- **Controller:** Cementos Argos S A
- **Operator:** Quikrete Construction Materials, LLC
- **Mine:** [0801277](https://api.ai-analytics.org/mine/0801277)
## Narrative

A maintenance intern was observing mechanics replace pans on a conveyor when a co-worker pinched the intern in jest, startling the intern to the point where the intern's left knee buckled and the intern fell to the ground.  The fall aggravated a previous knee injury to the point where medical attention was required.

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