# SLIP OR FALL OF PERSON
> MSHA accident `220182070011` · 07/12/2018 · Knife River Corporation-Northwest
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Fall to the walkway or working surface
- **Occupation:** Front-end loader, Scraper-loader operator, Pan operator, Payloader, Scraper rig operator
- **Activity:** Handling coal, Rock, Ore
- **Injury source:** GROUND
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 0
- **Mine experience:** 2.67 years
## Operator
- **Controller:** MDU Resources Group Inc
- **Operator:** Knife River Corporation-Northwest
- **Mine:** [3503558](https://api.ai-analytics.org/mine/3503558)
## Narrative

Miner was removing a rock from a conveyor. When they stepped back, they tripped over a rock and jammed their left thumb while trying to catch themselves.

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