# Proposed AD 2000-NM-321-AD: Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 and EMB-145 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2001-18-10
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 19, 2000, 65 FR 79323
- Comments due: January 18, 2001
- Became: [AD 2001-18-10](https://openairdocs.org/ad/2001-18-10)
- Docket: 2000-NM-321-AD
- FR document: 00-32316
- Official PDF: https://openairdocs.org/files/sha256/f2/ee/f2ee976046994ead827e23fb47175441ce01963c44237000b1832b03b2f53bf2 (from https://www.govinfo.gov/content/pkg/FR-2000-12-19/pdf/00-32316.pdf)
- Federal Register: https://www.federalregister.gov/documents/2000/12/19/00-32316/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-135-and-emb-145
- Page: https://openairdocs.org/proposed/2000-NM-321-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain EMBRAER Model EMB-135 and EMB-145 series airplanes. This proposal would require replacement of the engine oil pressure sensors with new sensors, and installation of an oil tank pressure relief kit. Additionally, the proposal would require revision of the Airplane Flight Manual that would specify new oil pressure limits. This action is necessary to prevent rejected takeoffs due to exceeding engine oil pressure limits, which could result in reduced controllability of the airplane. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Dec 19, 2000: Notice of proposed rulemaking (NPRM). (first notice), FR document 00-32316, comments due Jan 18, 2001 (https://www.federalregister.gov/documents/2000/12/19/00-32316/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-135-and-emb-145)

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