# Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-145 Series Airplanes
> **Rule** · Final rule; request for comments. · Published 1999-05-18 · Effective 1999-06-02 · 64 FR 26835
## Document
- **Document number:** 99-12296
- **Category:** airworthiness
- **Manufacturer:** Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-145 Series
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 64 FR 26835
- **Publication date:** 1999-05-18
- **Effective date:** 1999-06-02
- **FAA docket:** Docket No. 99-NM-104-AD
## Abstract

This amendment adopts a new airworthiness directive (AD) that is applicable to all EMBRAER Model EMB-145 series airplanes. This action requires repetitive replacement of the bleed-air check valve and associated gaskets on the bleed low-pressure line of the engine, with new parts. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified in this AD are intended to prevent failure of the bleed-air check valve on the bleed low-pressure line of the engine. Such failure could result in engine compressor stall and consequent flameout of the affected engine.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/05/18/99-12296/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-145-series-airplanes)
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