# SLIP OR FALL OF PERSON
> MSHA accident `220231710014` · 05/18/2023 · Knife River Corporation-Northwest
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Fall down stairs
- **Occupation:** Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman
- **Activity:** Walking, Running
- **Injury source:** STAIRS,STEPS-OUTSIDE
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** ANKLE
- **Days lost:** 0
- **Mine experience:** 3.23 years
## Operator
- **Controller:** MDU Resources Group Inc
- **Operator:** Knife River Corporation-Northwest
- **Mine:** [3503595](https://api.ai-analytics.org/mine/3503595)
## Narrative

Miner was negotiating stairs to perform maintenance on a screen. When they turned to face screen, their foot slipped off of the stair tread causing them to trip down the remaining two steps and sit down on top of their right foot/ankle. Miner was evaluated for right ankle strain.

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