# SLIP OR FALL OF PERSON
> MSHA accident `220171110025` · 04/15/2017 · Martin Marietta Materials, Inc.
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Utility man, Shift tech, Service/Dump truck operator
- **Activity:** Getting on or off equipment
- **Injury source:** PASS CARS,PICKUP TRUCKS
- **Nature of injury:** UNCLASSIFIED,NOT DETERMED
- **Body part:** KNEE/PATELLA
- **Days lost:** 102
- **Mine experience:** 40.58 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials, Inc.
- **Mine:** [3300156](https://api.ai-analytics.org/mine/3300156)
## Narrative

As operator was dismounting water truck, boot caught on the step causing knee to twist

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