# SLIP OR FALL OF PERSON
> MSHA accident `220120250002` · 12/21/2011 · Martin Marietta Materials, Inc.
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Quality control technician, Laboratory technician, Laboratory assistant
- **Activity:** Walking, Running
- **Injury source:** FLOOR,WALKING SURF-NOT UG
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 24.73 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials, Inc.
- **Mine:** [3300156](https://api.ai-analytics.org/mine/3300156)
## Narrative

QC Lab Tech was getting #4 Kiln Lime sample @ approx 11 PM & slipped going into NW corner doorway. She later reported her rt knee was sore & continued working throughout her schedule w/o incident. On 1/10/2012 she requested a diagnostic exam to check it out & a strain was diagnosed w/o any restrictions. Later PT was requested began on 1/18/2012 making incident reportable.

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