# SLIP OR FALL OF PERSON
> MSHA accident `220171840027` · 06/02/2017 · Thunder Basin Coal Company LLC
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Fall to the walkway or working surface
- **Occupation:** Welder (shop)
- **Activity:** Welding or cutting
- **Injury source:** GROUND
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 1.77 years
## Operator
- **Controller:** Arch Resources Inc
- **Operator:** Thunder Basin Coal Company LLC
- **Mine:** [4800977](https://api.ai-analytics.org/mine/4800977)
## Narrative

The IE tripped on a forklift pocket of a stand. When EE fell EE landed on left knee. Other than a little pain and some initial swelling the employee was feeling fine and able to walk and move the knee as normal. About 3 weeks later the knee had some fluid build up in a bursas sack and the employee had it drained. It became reportable when EE had the knee drained on 6/26/17. 

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