# Proposed AD 2001-NM-06-AD: BAe Systems (Operations) Limited Model BAe 146 and Avro 146-RJ Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2001-15-23
- Products: BAe Systems
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 5, 2001, 66 FR 30103
- Comments due: July 5, 2001
- Became: [AD 2001-15-23](https://openairdocs.org/ad/2001-15-23)
- Docket: 2001-NM-06-AD
- FR document: 01-14046
- Official PDF: https://openairdocs.org/files/sha256/f2/c3/f2c399b55ed8995bb61f721bd9b9d743eda803d3cc7016df042bb31bf8545d9f (from https://www.govinfo.gov/content/pkg/FR-2001-06-05/pdf/01-14046.pdf)
- Federal Register: https://www.federalregister.gov/documents/2001/06/05/01-14046/airworthiness-directives-bae-systems-operations-limited-model-bae-146-and-avro-146-rj-series
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/06064BCFD582CBDB86256A64006E2D80.0001
- Page: https://openairdocs.org/proposed/2001-NM-06-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain BAe Systems (Operations) Limited Model BAe 146 and Avro 146-RJ series airplanes. This proposal would require identifying the discharge valves and cabin pressure controllers, and replacing them with new parts if necessary. This action is necessary to prevent the installation of incorrect pressurization discharge valves and cabin pressure controllers, which could subject the airframe to excess stress and adversely affect the airframe fatigue life. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Jun 5, 2001: Notice of proposed rulemaking (NPRM). (first notice), FR document 01-14046, comments due Jul 5, 2001 (https://www.federalregister.gov/documents/2001/06/05/01-14046/airworthiness-directives-bae-systems-operations-limited-model-bae-146-and-avro-146-rj-series)

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