# Amputations involving bone loss at U.S. Engineering Service, LLC
> OSHA SIR `2025032736` · 3/23/2025 · DENVER, COLORADO
## Severity
- **1 amputation**
- **Body part:** Thumb(s)
- **Nature of injury:** Amputations involving bone loss
## Cause
- **Event:** Struck by suspended or swinging objects  n.e.c.
- **Source:** Wire, cables nonelectrified
- **Secondary source:** Cranes  unspecified
## Employer
- **Name:** U.S. Engineering Service, LLC
- **Location:** 11000 East 45th Ave, DENVER, COLORADO, 80239
- **NAICS:** 238220
- **Jurisdiction:** 1
## Narrative

Employees were using a crane to move pieces of an air handler off a roof. They were lowering a sand wheel with the crane. When the sand wheel touched the ground, the injured employee went to stabilize it. The steel cable used to rig the sand wheel moved and caught his thumb, causing an amputation.

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