# SLIP OR FALL OF PERSON
> MSHA accident `220111230014` · 04/23/2011 · Peabody Twentymile Mining LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Utility man, Errand boy, Service truck operator
- **Activity:** Getting on or off equipment
- **Injury source:** MINE FLOOR,BOTTOM,FOOTWAL
- **Nature of injury:** UNCLASSIFIED,NOT DETERMED
- **Body part:** KNEE/PATELLA
- **Days lost:** 50
- **Mine experience:** 0.08 years
## Operator
- **Controller:** Peabody Energy Corporation
- **Operator:** Peabody Twentymile Mining LLC
- **Mine:** [0503836](https://api.ai-analytics.org/mine/0503836)
## Narrative

EE complained about knee pain shortly stepping out of mantrip 698. He said his right knee popped. Observation of area showed no unstable ground. EE had commented he has had problems with his knee doing this before, contributed it to popping due to how he was sitting in the rear seat of mantrip 698.

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