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PoliticsFederal rulesFederal Aviation Administration
Final ruleTook effect May 8, 2026

Airworthiness Directives; Honda Aircraft Company LLC Airplanes

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register April 3, 2026. Document 2026-06527. Updated Nov. 13, 2026.

What it does

The FAA is superseding Airworthiness Directive (AD) 2021-22-12 for certain Honda Aircraft Company LLC (Honda) Model HA-420 airplanes. AD 2021-22-12 required removing and cleaning the inner diameter of the flap control pushrod assemblies and repetitively applying corrosion inhibiting compound (CIC) to this area. Since the FAA issued AD 2021- 22-12, new flap control pushrods have been approved that are more corrosion resistant and do not require repetitive CIC applications. In addition, referenced service material has been updated to a new revision that includes redesigned replacement flap control pushrod assemblies that have been modified to prevent interference with adjacent parts. This AD retains the requirements of AD 2021-22-12 and requires replacing the flap control pushrod assemblies with improved design pushrod assemblies for all airplanes affected by AD 2021-22-12, as well as for other airplanes not affected by AD 2021-22-12. 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 488 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

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

Since then:

What happens next and when

This AD is effective May 8, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number2026-06527
ActionFinal rule.
AgenciesTransportation Department; Federal Aviation Administration
PublishedApril 3, 2026
Effective dateMay 8, 2026
Regulation identifier (RIN)2120-AA64
DocketFAA-2025-0485

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