# Proposed AD FAA-2008-0642: Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 Airplanes, and Model EMB-145, -145ER, -145MR, - 145LR, -145XR, -145MP, and -145EP Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2008-17-05
- Products: Embraer
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 20, 2008, 73 FR 35098
- Comments due: July 21, 2008
- Became: [AD 2008-17-05](https://openairdocs.org/ad/2008-17-05)
- Docket: FAA-2008-0642 (https://www.regulations.gov/docket/FAA-2008-0642, where comments are filed)
- Project: 2008-NM-039-AD
- FR document: E8-13923
- Official PDF: https://openairdocs.org/files/sha256/9d/d9/9dd99b738e44647e645724420c3b3b5dc4f8eb3ddbd794644d8f7841331ee843 (from https://www.govinfo.gov/content/pkg/FR-2008-06-20/pdf/E8-13923.pdf)
- Federal Register: https://www.federalregister.gov/documents/2008/06/20/E8-13923/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-135-airplanes-and
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/88040FCF03D2CBCA8625746E0043733D.0001
- Page: https://openairdocs.org/proposed/FAA-2008-0642

## Summary

The FAA proposes to supersede an existing airworthiness directive (AD) that applies to all EMBRAER Model EMB-135 airplanes and Model EMB-145, -145ER, -145MR, -145LR, -145XR, -145MP, and -145EP airplanes. The existing 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 proposed AD would add airplanes to the applicability of the existing AD. This proposed AD results from fuel system reviews conducted by the manufacturer. We are proposing 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.

## Notices in this docket

- Jun 20, 2008: Notice of proposed rulemaking (NPRM). (first notice), FR document E8-13923, comments due Jul 21, 2008 (https://www.federalregister.gov/documents/2008/06/20/E8-13923/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-135-airplanes-and)

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