# Proposed AD FAA-2006-24204: BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2006-11-08
- Products: BAE Systems
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 27, 2006, 71 FR 15076
- Comments due: April 26, 2006
- Became: [AD 2006-11-08](https://openairdocs.org/ad/2006-11-08)
- Docket: FAA-2006-24204 (https://www.regulations.gov/docket/FAA-2006-24204, where comments are filed)
- Project: 2005-NM-178-AD
- FR document: E6-4411
- Official PDF: https://openairdocs.org/files/sha256/5a/b7/5ab7aa9e4d0fc6a666aa3bb104c7e4e2e057c064a8149f5e533ef248e976296b (from https://www.govinfo.gov/content/pkg/FR-2006-03-27/pdf/E6-4411.pdf)
- Federal Register: https://www.federalregister.gov/documents/2006/03/27/E6-4411/airworthiness-directives-bae-systems-operations-limited-model-bae-146-and-avro-146-rj-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F2B4A1C2B7E156FE8625713E006C9269.0001
- Page: https://openairdocs.org/proposed/FAA-2006-24204

## Summary

The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ airplanes. The existing AD currently requires 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 proposed AD would require a records review of the results of that inspection, and an additional inspection and related investigative/corrective action if necessary. This proposed AD results from the development of an improved inspection for corrosion in the subject area. We are proposing this AD to detect and correct corrosion in the flap structure and machined ribs, which could result in reduced structural integrity of the airplane.

## Notices in this docket

- Mar 27, 2006: Notice of proposed rulemaking (NPRM). (first notice), FR document E6-4411, comments due Apr 26, 2006 (https://www.federalregister.gov/documents/2006/03/27/E6-4411/airworthiness-directives-bae-systems-operations-limited-model-bae-146-and-avro-146-rj-airplanes)

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