# Airworthiness Directives; Embraer S.A. Airplanes
> **Rule** · Final rule. · Published 2023-11-06 · Effective 2023-12-11 · 88 FR 76112
## Document
- **Document number:** 2023-24393
- **Category:** airworthiness
- **Manufacturer:** Embraer S.A.
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 88 FR 76112
- **Publication date:** 2023-11-06
- **Effective date:** 2023-12-11
- **FAA docket:** Docket No. FAA-2023-1708
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Embraer S.A. (Embraer) Model EMB-505 airplanes. This AD was prompted by occurrences of an uncommanded change in the setting of the barometric pressure in both primary flight displays (PFDs). This AD requires installing a new version of the airplane avionics system software, 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/2023/11/06/2023-24393/airworthiness-directives-embraer-sa-airplanes)
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