# Avulsions, enucleations without bone loss at American Airlines
> OSHA SIR `2025055044` · 5/28/2025 · BRIDGETON, MISSOURI
## Severity
- **1 amputation**
- **Body part:** Finger or thumb tip(s), nail(s)
- **Nature of injury:** Avulsions, enucleations without bone loss
## Cause
- **Event:** Caught or wedged between objects  nonrunning
- **Source:** Wheels, tire rims
- **Secondary source:** Brake assemblies
## Employer
- **Name:** American Airlines
- **Location:** 10900 LAMBERT INTERNATIONAL BLVD, BRIDGETON, MISSOURI, 63044
- **NAICS:** 488119
- **Jurisdiction:** 1
## Narrative

During installation of one of the wheel assemblies, the injured employee was working to align the brake disc to the wheel keyways. Another mechanic was applying pressure to the wheel in the install direction. When the alignment was achieved and the wheel slid on, the injured employee's left thumb was caught between the brake disc and the wheel keyway. Approximately   inch of the thumb tip was severed, without bone loss.

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