# SLIP OR FALL OF PERSON
> MSHA accident `220163340020` · 10/07/2016 · Martin Marietta Materials, Inc.
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Fall to the walkway or working surface
- **Occupation:** Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer
- **Activity:** Machine maintenance
- **Injury source:** GROUND
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 9.38 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials, Inc.
- **Mine:** [1300032](https://api.ai-analytics.org/mine/1300032)
## Narrative

Employee slipped and fell to the ground landing on knee injuring the knee cap.  Employee required physical therapy effective 11/21/2016 making this a reportable.

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