# SLIP OR FALL OF PERSON
> MSHA accident `220102800035` · 09/28/2010 · Martin Marietta Materials, Inc.
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Walking, Running
- **Injury source:** GROUND
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 35.87 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials, Inc.
- **Mine:** [3300156](https://api.ai-analytics.org/mine/3300156)
## Narrative

PM Repairman was standing on the ground recording his work in front of the #4 Kiln dust pump. While reaching in to touch the electronic recording button on the drive guard, he began to step to his right to go to the next job, and twisted his right knee. This caused a mild strain that required medical attention & several restricted days to heal. RTW full duty 10/4/10.

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