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 May 28, 2026. Document 2026-10606. Updated Nov. 10, 2026.

What it does

The FAA is adopting a new airworthiness directive (AD) for certain Honda Aircraft Company LLC (Honda) Model HA-420 airplanes. This AD was prompted by a report of tool damage to multiple locations on the interior fuselage skin fiber and the omission of certain service material from the Airworthiness Limitations Section (ALS) of the maintenance manual. This AD requires incorporating certain material into the ALS of the existing maintenance manual or instructions for continued airworthiness (ICA) and the existing maintenance or inspection program, as applicable. 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

820 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 2, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number	2026-10606
Action	Final rule.
Agencies	Transportation Department; Federal Aviation Administration
Published	May 28, 2026
Effective date	July 2, 2026
Regulation identifier (RIN)	2120-AA64
Docket	FAA-2026-0020

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