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PoliticsFederal rulesFederal Aviation Administration
Final ruleTook effect July 6, 2026

Airworthiness Directives; Embraer S.A. Airplanes

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register June 1, 2026. Document 2026-10854. Updated Nov. 10, 2026.

What it does

The FAA is adopting a new airworthiness directive (AD) for certain Embraer S.A. (Embraer) Model EMB-505 airplanes. This AD was prompted by the possibility that some airplanes may have invalid horizontal stabilizer (HS) backlash test results due to the use of incorrect procedures. This AD requires inspecting the airplane's left- hand (LH) and right-hand (RH) HS backlash and replacement, as applicable, of certain hinge point and pitch trim actuator attachment parts and the pitch trim actuator. The FAA is issuing this AD to address the unsafe condition on these products.

The Federal Aviation Administration's summary, as published in the Federal Register.

What changed in the regulation

1 part of Title 14 of the Code of Federal Regulations:

14 CFR 39

Wording on eCFR: the day before it took effect and from the day it took effect (first part listed).

Compared with

The Federal Aviation Administration has published 482 final rules in 2026 so far, compared with 518 in all of 2025.

Counted by the Tribune from Federal Register records since Jan. 1, 2025.

Before this

829 earlier Federal Register documents under regulation identifier 2120-AA64 since Jan. 1, 2025.

Since then:

What happens next and when

This AD is effective July 6, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number2026-10854
ActionFinal rule.
AgenciesTransportation Department; Federal Aviation Administration
PublishedJune 1, 2026
Effective dateJuly 6, 2026
Regulation identifier (RIN)2120-AA64
DocketFAA-2025-3993

Source: the Federal Register (public domain). The document in the Federal Register