# Proposed AD 2001-NM-224-AD: BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2002-03-07
- Products: BAE Systems
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 4, 2001, 66 FR 50586
- Comments due: November 5, 2001
- Became: [AD 2002-03-07](https://openairdocs.org/ad/2002-03-07)
- Docket: 2001-NM-224-AD
- FR document: 01-24873
- Official PDF: https://openairdocs.org/files/sha256/8f/26/8f266646474eb2cb7e67fb313da90e12438c18c7c989f9f25b0e9ef66b968896 (from https://www.govinfo.gov/content/pkg/FR-2001-10-04/pdf/01-24873.pdf)
- Federal Register: https://www.federalregister.gov/documents/2001/10/04/01-24873/airworthiness-directives-bae-systems-operations-limited-model-bae-146-and-avro-146-rj-series
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D9D46B91ACAA3D9786256ADC004600EC.0001
- Page: https://openairdocs.org/proposed/2001-NM-224-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 a one-time inspection to detect corrosion of the flap structure and machined ribs, corrective actions if necessary, and reprotection of the rib boss bores. This action is necessary to detect and correct corrosion in the flap structure and machined ribs, which could result in reduced structural integrity of the airplane. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Oct 4, 2001: Notice of proposed rulemaking (NPRM). (first notice), FR document 01-24873, comments due Nov 5, 2001 (https://www.federalregister.gov/documents/2001/10/04/01-24873/airworthiness-directives-bae-systems-operations-limited-model-bae-146-and-avro-146-rj-series)

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