# SLIP OR FALL OF PERSON
> MSHA accident `220172050007` · 07/14/2017 · Naselle Rock & Asphalt Company
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Safety director
- **Activity:** Getting on or off equipment
- **Injury source:** GROUND
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 3.33 years
## Operator
- **Controller:** Arne L Wirkkala
- **Operator:** Naselle Rock & Asphalt Company
- **Mine:** [4500063](https://api.ai-analytics.org/mine/4500063)
## Narrative

Worker stepped down from a conveyor belt employee was repairing and heard a popping sound in employee's right knee.  Now the knee clicks when employee walks.

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