# Amputations involving bone loss at GENERAL MOTORS
> OSHA SIR `2025032691` · 3/21/2025 · WENTZVILLE, MISSOURI
## Severity
- **1 amputation, 1 hospitalization**
- **Body part:** Thumb(s)
- **Nature of injury:** Amputations involving bone loss
## Cause
- **Event:** Caught or wedged between objects  nonrunning
- **Source:** Stamping machinery, presses  except printing
- **Secondary source:** Drives, belts, chains
## Employer
- **Name:** GENERAL MOTORS
- **Location:** 1500 East Route A, WENTZVILLE, MISSOURI, 63385
- **NAICS:** 336112
- **Jurisdiction:** 1
## Narrative

An employee was assessing an overhead stamping press door for alignment issues when the counterbalance moved and their left thumb was caught between the chain and the sprocket. The thumb was amputated. The door was locked out/tagged out at the time but gravitational pull was not controlled.

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