Every article on this site is written by AI from official sources and checked by a second AI. How it works
Final ruleTook effect March 31, 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 Feb. 24, 2026. Document 2026-03609. Updated Nov. 14, 2026.

What it does

The FAA is superseding Airworthiness Directive (AD) 2023-22- 11, which applied to certain Embraer S.A. (Embraer) Model EMB-505 airplanes. AD 2023-22-11 required repetitively replacing the clutch retaining bolt and washer of the aileron autopilot servo mount. Since the FAA issued AD 2023-22-11, the FAA has determined that the applicability should include certain Model EMB-505 airplanes and, for certain airplanes, an additional requirement is necessary for the initial replacement of the retaining bolt and washer. This AD incorporates these additional airplanes into the applicability, adds the additional requirement, and also provides an optional terminating action for the repetitive retaining bolt and washer replacement. 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 489 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

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

Since then:

What happens next and when

This AD is effective March 31, 2026.

The agency's dates, word for word.

Document number2026-03609
ActionFinal rule.
AgenciesTransportation Department; Federal Aviation Administration
PublishedFeb. 24, 2026
Effective dateMarch 31, 2026
Regulation identifier (RIN)2120-AA64
DocketFAA-2025-0478

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