# Avulsions, enucleations without bone loss at Knife River Corporation South
> OSHA SIR `2025065406` · 6/6/2025 · BRYAN, TEXAS
## Severity
- **1 hospitalization**
- **Body part:** Thumb(s)
- **Nature of injury:** Avulsions, enucleations without bone loss
## Cause
- **Event:** Struck by running powered equipment  during maintenance, cleaning, testing
- **Source:** Pumps  except oil well
- **Secondary source:** Secondary source not applicable
## Employer
- **Name:** Knife River Corporation South
- **Location:** 6310 TX-21, BRYAN, TEXAS, 77807
- **NAICS:** 212321
- **Jurisdiction:** 1
## Narrative

An employee was cleaning the cylinder on a 55-gallon barrel pump. While he was cleaning built-up material from under the baseplate, the piston started moving and caught his thumb against the seat. Three-quarters of an inch of the thumb was degloved; he was hospitalized, requiring surgery.

---
*Source: [OSHA Severe Injury Reports](https://www.osha.gov/severe-injury-reports) · MORVS · CC0 1.0*