# Proposed AD 2001-NM-05-AD: BAE Systems (Operations) Limited Model BAE 146 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2002-02-03
- Products: BAE Systems
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 14, 2001, 66 FR 47899
- Comments due: October 15, 2001
- Became: [AD 2002-02-03](https://openairdocs.org/ad/2002-02-03)
- Docket: 2001-NM-05-AD
- FR document: 01-23069
- Official PDF: https://openairdocs.org/files/sha256/c1/8c/c18c625c68fac507058b84873fbdc03487fd21c1b664820eb3c2535f7cd84c5b (from https://www.govinfo.gov/content/pkg/FR-2001-09-14/pdf/01-23069.pdf)
- Federal Register: https://www.federalregister.gov/documents/2001/09/14/01-23069/airworthiness-directives-bae-systems-operations-limited-model-bae-146-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B7D89F6052017D5E86256AC70055AAEB.0001
- Page: https://openairdocs.org/proposed/2001-NM-05-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 series airplanes. This proposal would require repetitive inspections to detect cracking of the horizontal butt joint of the rear pressure bulkhead and repair, as necessary. This proposal also would require installation of new joint plates on the aft face of the rear pressure bulkhead, which would terminate the repetitive inspections. This action is necessary to prevent cracking of the horizontal butt joint of the rear pressure bulkhead, which could result in reduced structural integrity of the airplane. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Sep 14, 2001: Notice of proposed rulemaking (NPRM). (first notice), FR document 01-23069, comments due Oct 15, 2001 (https://www.federalregister.gov/documents/2001/09/14/01-23069/airworthiness-directives-bae-systems-operations-limited-model-bae-146-series-airplanes)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.