# Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 Airplanes, and Model EMB-145, -145ER, -145MR, -145LR, -145XR, -145MP, and -145EP Airplanes
> **Rule** · Final rule. · Published 2008-08-19 · Effective 2008-09-23 · 73 FR 48294
## Document
- **Document number:** E8-18808
- **Category:** airworthiness
- **Manufacturer:** Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 73 FR 48294
- **Publication date:** 2008-08-19
- **Effective date:** 2008-09-23
- **FAA docket:** Docket No. FAA-2008-0642
## Abstract

The FAA is superseding an existing airworthiness directive (AD), which applies to certain EMBRAER Model EMB-135 airplanes and Model EMB-145, -145ER, -145MR, -145LR, -145XR, -145MP, and -145EP airplanes. That AD currently requires replacing the metallic tubes enclosing the vent and pilot valve wires in the left- and right-hand wing fuel tanks with non-conductive hoses. This new AD adds airplanes to the applicability of the existing AD. This AD results from fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent an ignition source inside the fuel tank that could ignite fuel vapor and cause a fuel tank explosion and loss of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2008/08/19/E8-18808/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-135-airplanes-and)
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