# SLIP OR FALL OF PERSON
> MSHA accident `220261870012` · 04/15/2026 · Thunder Basin Coal Company LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Fall to the walkway or working surface
- **Occupation:** Motorman, Motor person, Swamper, Switchman, Locomotive operator
- **Activity:** Unknown
- **Injury source:** GROUND
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** SHOULDERS (COLLARBONE/CLAVICLE/SCAPULA)
- **Days lost:** —
- **Mine experience:** 1.58 years
## Operator
- **Controller:** Core Natural Resources Inc
- **Operator:** Thunder Basin Coal Company LLC
- **Mine:** [4800977](https://api.morvs.ai/mine/4800977)
## Narrative

Team member lost balance and fell with arm in an outstretched position

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