Airworthiness Directives; Gulfstream Aerospace LP Airplanes

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register May 8, 2026. Document 2026-09170. Updated Nov. 11, 2026.

What it does

The FAA is adopting a new airworthiness directive (AD) for certain Gulfstream Aerospace LP (GALP) Model Gulfstream G280 airplanes. This AD was prompted by reports of the accumulation of water in electrical connectors located in the aft fuselage directly below the empennage, resulting in empennage flight control related crew alerting system (CAS) messages. This AD requires retrofitting the flight controls empennage electrical harness. 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 485 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

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

Since then:

What happens next and when

This AD is effective June 12, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number	2026-09170
Action	Final rule.
Agencies	Transportation Department; Federal Aviation Administration
Published	May 8, 2026
Effective date	June 12, 2026
Regulation identifier (RIN)	2120-AA64
Docket	FAA-2025-5404

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