# Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135BJ and EMB-145XR Airplanes
> **Rule** · Final rule. · Published 2006-10-13 · Effective 2006-11-17 · 71 FR 60417
## Document
- **Document number:** E6-16895
- **Category:** airworthiness
- **Manufacturer:** Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135BJ and EMB-145XR
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 71 FR 60417
- **Publication date:** 2006-10-13
- **Effective date:** 2006-11-17
- **FAA docket:** Docket No. 2004-NM-36-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135BJ and Model EMB-145XR airplanes. This AD requires, for all airplanes, installation of an additional indication device to the clear-ice indication system. For certain airplanes, this AD requires replacing the existing clear-ice indication lamp with a new, improved lamp. For certain other airplanes, this AD also requires modifying certain electrical connections to add an indication device to the clear-ice indication system, removing a certain placard, and re- activating the clear-ice additional indicator lamp. The actions specified by this AD are intended to prevent undetected build-up of clear ice on the wing surfaces, which could lead to reduced controllability of the airplane. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/10/13/E6-16895/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-135bj-and-emb-145xr)
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