# Intracranial injuries  unspecified at Allied Fire Protection
> OSHA SIR `2025076533` · 7/7/2025 · CARROLLTON, TEXAS
## Severity
- **1 hospitalization**
- **Body part:** Brain
- **Nature of injury:** Intracranial injuries  unspecified
## Cause
- **Event:** Fall to lower level resulting from exposure or contact  6 to 30 feet
- **Source:** Step ladders
- **Secondary source:** Ducts  any material
## Employer
- **Name:** Allied Fire Protection
- **Location:** 4004 Midway Road, Carrollton TX 75007, CARROLLTON, TEXAS, 75007
- **NAICS:** 922160
- **Jurisdiction:** 1
## Narrative

Employees were troubleshooting dual duct detectors in a room. The injured employee was on the second rung from the top of a forward-facing 12-foot A-frame ladder. He was reinstalling the duct detector in the furthest duct from him (18 inches). When he pushed the duct detector into the existing holes, the duct broke free and fell, striking his back and shoulders. He was knocked forward over the ladder and fell to the floor. The employee sustained a head injury.

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