# SLIP OR FALL OF PERSON
> MSHA accident `220101950016` · 07/11/2010 · Thunder Basin Coal Company LLC
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer
- **Activity:** Getting on or off equipment
- **Injury source:** GROUND
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** LOWER LEG/TIBIA/FIBULA
- **Days lost:** 0
- **Mine experience:** 2.25 years
## Operator
- **Controller:** Arch Resources Inc
- **Operator:** Thunder Basin Coal Company LLC
- **Mine:** [4800977](https://api.ai-analytics.org/mine/4800977)
## Narrative

The technician stumbled, fracturing the right fibula just above the ankle as it rolled over when exiting the crew bus.

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