# Airworthiness Directives; Embraer S.A. (Type Certificate Previously Held by Yaborã Indústria Aeronáutica S.A.; Embraer S.A.; Empresa Brasileira de Aeronáutica S.A. (EMBRAER)) Airplanes
> **Rule** · Final rule. · Published 2023-12-18 · Effective 2024-01-22 · 88 FR 87336
## Document
- **Document number:** 2023-27678
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 88 FR 87336
- **Publication date:** 2023-12-18
- **Effective date:** 2024-01-22
- **FAA docket:** Docket No. FAA-2023-1807
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Embraer S.A. Model EMB-135BJ airplanes. This AD was prompted by reports of missing sealant on the rivets installed in the interface between rib 3 and the wing skin. This AD requires applying sealant on the rivets installed in the interface between rib 3 and wing skin, 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/2023/12/18/2023-27678/airworthiness-directives-embraer-sa-type-certificate-previously-held-by-yabor-indstria-aeronutica-sa)
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