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Data / Federal rules / 2026-13206

Airworthiness Directives; The Boeing Company Airplanes

The Federal Aviation Administration published this final rule in the Federal Register on June 30, 2026. It took effect on July 1, 2026. Comments closed on August 14, 2026.

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What the agency says

The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-, -200, -200C, -300, -400, -500, -600, - 700, -700C, -800, -900, and -900ER series airplanes, except for Model 737-200 and -200C series airplanes equipped with a certain flight control system. This AD was prompted by the determination that radio altimeters cannot be relied upon to perform their intended function if they experience interference from wireless broadband operations in the 3.7-3.98 GHz frequency band (5G Lower C-Band) while operating in Canadian airspace, and the determination that, during approach, landings, and go-arounds, as a result of this interference, certain airplane systems may not properly function, resulting in increased flightcrew workload while on approach with the flight director, autothrottle, or autopilot engaged, which could result in reduced ability of the flightcrew to maintain safe flight and landing of the airplane. This AD requires revising the existing airplane flight manual (AFM) to incorporate limitations prohibiting certain operations requiring radio altimeter data when operating in Canadian airspace. The FAA is issuing this AD to address the unsafe condition on these products.

Key facts

Document number
2026-13206
Type
Final rule
Action
Final rule; request for comments
Agency
Transportation Department; Federal Aviation Administration
Published
June 30, 2026
Takes effect
July 1, 2026
Comments due
August 14, 2026
Dates
This AD is effective July 1, 2026.
Docket
Docket No. FAA-2026-7204; Project Identifier AD-2026-00548-T; Amendment 39-23396; AD 2026-13-13
Regulation ID (RIN)
2120-AA64
Code of Federal Regulations
14 CFR 39
Topics
Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
Pages
8

The document on federalregister.gov PDF

Other documents from the Federal Aviation Administration

Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in June 2026

Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.