# MACHINERY
> MSHA accident `220100680037` · 12/01/2009 · Martin Marietta Materials, Inc.
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** MACHINERY
- **Accident type:** Caught in, under or between NEC
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Machine maintenance
- **Injury source:** MACHINE-MILL,CLEANING PLT
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 35.06 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials, Inc.
- **Mine:** [3300156](https://api.ai-analytics.org/mine/3300156)
## Narrative

On 12/1/09 EE was attempting to unplug wet screen system. While standing on the screen he reported twisting his rt.knee between the spray bars. Testing diagnosed osteoarthritis until 3/5/10 arthro.exam found and repaired a torn lateral meniscus. Reportable as of 3/5/10 due to medical conf. of torn ligament not just arthritis. Temp. restrict.duty until next sch. shift.

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