# STEPPING OR KNEELING ON OBJECT
> MSHA accident `220171740009` · 06/15/2017 · Martin Marietta Materials, Inc.
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** STEPPING OR KNEELING ON OBJECT
- **Accident type:** Over-exertion in pulling or pushing objects
- **Occupation:** Haul/Off road/Coal/Ore/Pit/Quarry/Rock/Rubber tire truck driver, Transportation truck driver
- **Activity:** Getting on or off equipment
- **Injury source:** HGHWY ORE CARIER,LRGE TRK
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 0.73 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials, Inc.
- **Mine:** [1300014](https://api.ai-analytics.org/mine/1300014)
## Narrative

Employee alleged that as they began to climb entry ladder of a haul truck they placed their right foot on the first step.  As they took the weight off the left leg the left knee popped and caused pain.  EE was seen at a clinic where restrictions were placed on their work activity.  No direct cause was identified.

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