# STEPPING OR KNEELING ON OBJECT
> MSHA accident `220091740022` · 06/20/2009 · BHP Navajo Coal Company
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** STEPPING OR KNEELING ON OBJECT
- **Accident type:** Struck against stationary object
- **Occupation:** Crane operator, Mobile equipment operator (MEO), Dragline operator, Dropball operator, Rigger
- **Activity:** Getting on or off equipment
- **Injury source:** SURFACE MINING MACHINES
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 82
- **Mine experience:** 29.88 years
## Operator
- **Controller:** BHP Billiton
- **Operator:** BHP Navajo Coal Company
- **Mine:** [2900097](https://api.ai-analytics.org/mine/2900097)
## Narrative

During a pre-shift inspection, the operator was stepping onto a dragline bucket when he heard a pop and sprained his left knee.

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