# Amputations involving bone loss at Comet Signs LLC.
> OSHA SIR `2025032995` · 3/31/2025 · SAN ANTONIO, TEXAS
## Severity
- **1 amputation, 1 hospitalization**
- **Body part:** Thumb(s)
- **Nature of injury:** Amputations involving bone loss
## Cause
- **Event:** Struck by running powered equipment  irregular movement, kick back
- **Source:** Stationary sawing machinery stationary  n.e.c.
- **Secondary source:** Machine guards
## Employer
- **Name:** Comet Signs LLC.
- **Location:** 5003 Stout Drive, SAN ANTONIO, TEXAS, 78219
- **NAICS:** 339950
- **Jurisdiction:** 1
## Narrative

An employee was using a sliding chop saw to cut 2 x 4 lumber boards. Two pieces of lumber were positioned on the deck and secured against the back guard. All other guards were on the saw and in use, including the retractable blade guard. The employee was performing the cut when the saw kicked and the blade amputated their thumb. The employee was hospitalized.

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