# STEPPING OR KNEELING ON OBJECT
> MSHA accident `220072690001` · 09/10/2007 · Martin Marietta Materials, Inc.
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** STEPPING OR KNEELING ON OBJECT
- **Accident type:** Struck against stationary object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Machine maintenance
- **Injury source:** BROKEN ROCK,COAL,ORE,WSTE
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** ANKLE
- **Days lost:** 4
- **Mine experience:** 0.06 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials, Inc.
- **Mine:** [3401651](https://api.ai-analytics.org/mine/3401651)
## Narrative

Employee performing maintenance/welding repairs to the plant, stepped down from a platform (about 10"" drop) and stepped on a rock, twisting his ankle. After first aid he was released with no restrictions. Later taken off work on 9/19/07.

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