# Fractures at AAON INC.
> OSHA SIR `2017021825` · 2/27/2017 · TULSA, OKLAHOMA
## Severity
- **1 hospitalization**
- **Body part:** Finger(s), fingernail(s), unspecified
- **Nature of injury:** Fractures
## Cause
- **Event:** Struck by dislodged flying object, particle
- **Source:** Chains, n.e.c.
## Employer
- **Name:** AAON INC.
- **Location:** 2425 S. YUKON AVE., TULSA, OKLAHOMA, 74107
- **NAICS:** 333415
- **Jurisdiction:** 1
## Narrative

An employee was assisting in the removal of roller chain that had jammed a gear box. The chain popped suddenly and struck the employee's right thumb fracturing it.

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