# Amputations involving bone loss at Environmental Systems, Inc.
> OSHA SIR `2025054114` · 5/1/2025 · LEXINGTON, MASSACHUSETTS
## Severity
- **1 amputation**
- **Body part:** Other finger(s)  n.e.c.
- **Nature of injury:** Amputations involving bone loss
## Cause
- **Event:** Struck by door, gate, window
- **Source:** Doors  swinging and sliding
- **Secondary source:** Building  unspecified
## Employer
- **Name:** Environmental Systems, Inc.
- **Location:** 113 Hartwell Avenue, LEXINGTON, MASSACHUSETTS, 02420
- **NAICS:** 238220
- **Jurisdiction:** 1
## Narrative

An employee was entering an HVAC plenum when their left thumb was caught in the door and amputated between the nailbed and the knuckle.

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