# Proposed AD FAA-2006-26356: Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 and ERJ 190 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2007-05-02
- Products: Embraer
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 20, 2006, 71 FR 67075
- Comments due: December 20, 2006
- Became: [AD 2007-05-02](https://openairdocs.org/ad/2007-05-02)
- Docket: FAA-2006-26356 (https://www.regulations.gov/docket/FAA-2006-26356, where comments are filed)
- Project: 2006-NM-166-AD
- FR document: E6-19532
- Official PDF: https://openairdocs.org/files/sha256/5a/1e/5a1e1c37b1a417e657db3ae14176e2f13be31c12a383437c133db5472367410b (from https://www.govinfo.gov/content/pkg/FR-2006-11-20/pdf/E6-19532.pdf)
- Federal Register: https://www.federalregister.gov/documents/2006/11/20/E6-19532/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-erj-170-and-erj-190
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E5A8834EED91F6238625722C005B1DA6.0001
- Page: https://openairdocs.org/proposed/FAA-2006-26356

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all EMBRAER Model ERJ 170 and ERJ 190 airplanes. This proposed AD would require repetitive detailed inspections for blockage of the pitot drain holes of certain air data smart probes (ADSPs), removing accumulated moisture from the pneumatic passages of the ADSPs, related investigative actions, and corrective actions if necessary. This proposed AD results from reports of erroneous air speed indications caused by blockage of the pitot sensors due to freezing of accumulated moisture in the ADSP pneumatic passages. We are proposing this AD to prevent an erroneous air speed indication, which could reduce flightcrew ability to control the airplane.

## Notices in this docket

- Nov 20, 2006: Notice of proposed rulemaking (NPRM). (first notice), FR document E6-19532, comments due Dec 20, 2006 (https://www.federalregister.gov/documents/2006/11/20/E6-19532/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-erj-170-and-erj-190)

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