# SLIP OR FALL OF PERSON
> MSHA accident `220120940021` · 01/27/2012 · Advent Mining LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)
- **Activity:** Escaping a hazard
- **Injury source:** MINE FLOOR,BOTTOM,FOOTWAL
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** KNEE/PATELLA
- **Days lost:** 15
- **Mine experience:** 1.23 years
## Operator
- **Controller:** Chester M  Thomas
- **Operator:** Advent Mining LLC
- **Mine:** [1518547](https://api.morvs.ai/mine/1518547)
## Narrative

Employee twisted his right knee when stepping back beside roof bolter when a piece of rock 2'x3' fell between atrs and canopy.

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