# Airworthiness Directives; BAE Systems (Operations) Limited Airplanes
> **Rule** · Final rule. · Published 2023-02-10 · Effective 2023-03-17 · 88 FR 8747
## Document
- **Document number:** 2023-02783
- **Category:** airworthiness
- **Manufacturer:** BAE Systems (Operations) Limited
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 88 FR 8747
- **Publication date:** 2023-02-10
- **Effective date:** 2023-03-17
- **FAA docket:** Docket No. FAA-2022-1313
## Abstract

The FAA is superseding Airworthiness Directive (AD) 99-25-11 for certain BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ series airplanes. AD 99-25-11 required repetitive inspections for cracks along the face of the retraction attachment boss in the nose landing gear (NLG) sidewall; and corrective action, if necessary. This AD was prompted by a report of a crack found on the left-hand sidewall well on the NLG, and by the determination that additional airplanes are subject to the identified unsafe condition. This AD continues to require the actions in AD 99-25-11, and expands the applicability. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/02/10/2023-02783/airworthiness-directives-bae-systems-operations-limited-airplanes)
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