# Airworthiness Directives; Embraer S.A. Airplanes
> **Rule** · Final rule; request for comments. · Published 2024-11-20 · Effective 2024-11-20 · 89 FR 91541
## Document
- **Document number:** 2024-27254
- **Category:** airworthiness
- **Manufacturer:** Embraer S.A.
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 89 FR 91541
- **Publication date:** 2024-11-20
- **Effective date:** 2024-11-20
- **FAA docket:** Docket No. FAA-2024-2426
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Embraer S.A. Model EMB-545 and EMB-550 airplanes. This AD was prompted by reports of corrosion, damage, and rupture on the down lock spring assemblies of the main landing gear (MLG) and nose landing gear (NLG). This AD requires inspecting for affected MLG and NLG down lock springs and replacing affected down lock springs, and prohibits the installation of affected parts, as specified in an Ag[ecirc]ncia Nacional de Avia[ccedil][atilde]o Civil (ANAC) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2024/11/20/2024-27254/airworthiness-directives-embraer-sa-airplanes)
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