# Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes
> **Rule** · Final rule; request for comments. · Published 2006-01-27 · Effective 2006-02-13 · 71 FR 4484
## Document
- **Document number:** 06-782
- **Category:** airworthiness
- **Manufacturer:** Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 71 FR 4484
- **Publication date:** 2006-01-27
- **Effective date:** 2006-02-13
- **FAA docket:** Docket No. FAA-2006-23703
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 airplanes. This AD requires, when certain SmartProbes are installed, revising the Limitations section of the airplane flight manual to limit the maximum take-off weight of the airplane and increase the reference speed during certain landing conditions. This AD results from reports of variable calibration values of certain sensors of the SmartProbes, which could result in the transmission of erroneous information to the air data system. We are issuing this AD to prevent reduced controllability of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/01/27/06-782/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-erj-170-airplanes)
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