# Proposed AD FAA-2023-2400: BAE Systems (Operations) Limited Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2024-06-10
- Products: BAE Systems
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 27, 2023, 88 FR 89339
- Comments due: February 12, 2024
- Became: [AD 2024-06-10](https://openairdocs.org/ad/2024-06-10)
- Docket: FAA-2023-2400 (https://www.regulations.gov/docket/FAA-2023-2400, where comments are filed)
- Project: MCAI-2023-00782-T
- FR document: 2023-28254
- Official PDF: https://openairdocs.org/files/sha256/42/b2/42b2d6999ea79da3c2f46e2db4e6bb79298a80c862b718d18012ac0b510151a9 (from https://www.govinfo.gov/content/pkg/FR-2023-12-27/pdf/2023-28254.pdf)
- Federal Register: https://www.federalregister.gov/documents/2023/12/27/2023-28254/airworthiness-directives-bae-systems-operations-limited-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2023-28254-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2023-2400

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) 2022-25-18, which applies to certain BAE Systems (Operations) Limited Model BAe 146 and Model Avro 146-RJ series airplanes. AD 2022-25-18 requires repetitive inspections for cracking of the main landing gear (MLG) side stay outer link and replacement if necessary. Since the FAA issued AD 2022-25-18, additional investigations of the causes of the cracking were conducted. This proposed AD would require a reduction of the repetitive visual inspection interval, provide optional repetitive special detailed inspections, accomplishing a one-off dimensional tolerance check and performing a repetitive lubrication of the MLG side stay outer link pivot, as specified in a United Kingdom (U.K.) Civil Aviation Authority (CAA) (U.K. CAA) AD, which is proposed for incorporation by reference (IBR). The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Dec 27, 2023: Notice of proposed rulemaking (NPRM). (first notice), FR document 2023-28254, comments due Feb 12, 2024 (https://www.federalregister.gov/documents/2023/12/27/2023-28254/airworthiness-directives-bae-systems-operations-limited-airplanes)

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