# STEPPING OR KNEELING ON OBJECT
> MSHA accident `220171990016` · 07/06/2017 · Freeport-McMoRan Morenci Inc.
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** STEPPING OR KNEELING ON OBJECT
- **Accident type:** Struck against stationary object
- **Occupation:** Drill operator
- **Activity:** Surface equipment, NEC
- **Injury source:** SURFACE MINING MACHINES
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 10.46 years
## Operator
- **Controller:** Freeport-McMoRan Inc
- **Operator:** Freeport-McMoRan Morenci Inc.
- **Mine:** [0200024](https://api.ai-analytics.org/mine/0200024)
## Narrative

A drill operator was climbing the steps on the 11R drill when knee buckled causing ee to hit the same knee on the steps. EE received a minor scrape and some knee pain as a result. On 7/7/2017, the employee returned to the clinic and given restrictions.

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