# Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-145XR Airplanes
> **Rule** · Final rule. · Published 2006-12-27 · Effective 2007-01-31 · 71 FR 77590
## Document
- **Document number:** E6-22041
- **Category:** airworthiness
- **Manufacturer:** Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-145XR
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 71 FR 77590
- **Publication date:** 2006-12-27
- **Effective date:** 2007-01-31
- **FAA docket:** Docket No. FAA-2006-24440
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain EMBRAER Model EMB-145XR airplanes. This AD requires replacement of certain segments of the passenger seat tracks with new, improved seat tracks. This AD results from instances where the shear plungers of the passenger seat legs were not adequately fastened. We are issuing this AD to prevent inadequate fastening of the seat leg shear plungers, which could result in failure of the passenger seat tracks during emergency landing conditions and consequent injury to passengers.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/12/27/E6-22041/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-145xr-airplanes)
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