Proposed ruleComments close Nov. 23, 2026
Airworthiness Directives; Various Helicopters
Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Oct. 8, 2026. Document 2026-20677. Updated Nov. 5, 2026.
Open for public comment until Nov. 23, 2026. Comment on Regulations.gov
- What it does
The FAA proposes to adopt a new airworthiness directive (AD) for all helicopters equipped with a radio (also known as radar) altimeter. This proposed 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 to 3.98 GHz frequency band (5G Lower C-Band) while operating in Canadian airspace. This proposed AD would require revising the existing rotorcraft flight manual (RFM) for the helicopter to incorporate limitations prohibiting certain operations requiring radio altimeter data when operating within Canadian airspace. The FAA is proposing this AD to address the unsafe condition on these products.
The Federal Aviation Administration's summary, as published in the Federal Register.
- What it would change
1 part of Title 14 of the Code of Federal Regulations:
- Before this
1042 earlier Federal Register documents under regulation identifier 2120-AA64 since Jan. 1, 2025.
- Oct. 8, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Airbus SAS Airplanes
- Oct. 8, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Airbus SAS Airplanes
- Oct. 8, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes
- Oct. 8, 2026 Final rule; request for comments. Airworthiness Directives; Engine Alliance Engines
- Oct. 7, 2026 Supplemental notice of proposed rulemaking (SNPRM). Airworthiness Directives; Airbus SAS Airplanes
- Oct. 5, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Airbus Helicopters
- Oct. 5, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; DG Aviation GmbH (Type Certificate Previously Held by DG Flugzeugbau GmbH) Gliders
- Oct. 1, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes
Since then:
- Oct. 9, 2026 Final rule; request for comments. Airworthiness Directives; Airbus Helicopters Deutschland GmbH (AHD) Helicopters
- Oct. 13, 2026 Final rule; request for comments. Airworthiness Directives; Elixir Aircraft
- Oct. 13, 2026 Final rule. Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Engines
- Oct. 13, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Airbus Helicopters
- Oct. 14, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Leonardo S.p.A. Helicopters
- Oct. 14, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Baykar Piaggio Aerospace S.p.A. (Type Certificate Previously Held by Piaggio Aviation S.p.A.) Airplanes
- Oct. 14, 2026 Proposed rule; withdrawal. Airworthiness Directives; The Boeing Company Airplanes
- Oct. 14, 2026 Final rule. Airworthiness Directives; Bombardier, Inc., Airplanes
- Oct. 14, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Leonardo S.p.a. Helicopters
- Oct. 15, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Airbus SAS Airplanes
- Oct. 15, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Airbus Helicopters Deutschland GmbH (AHD) Helicopters
- Oct. 19, 2026 Final rule. Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Engines
- Oct. 19, 2026 Final rule. Airworthiness Directives; Pratt & Whitney Division Engines
- Oct. 19, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Pratt & Whitney RTX Corporation (Type Certificate Previously Held by Pratt & Whitney Division United Technologies Corporation) Engines
- Oct. 19, 2026 Final rule. Airworthiness Directives; Airbus SAS Airplanes
- Oct. 19, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes
- Oct. 19, 2026 Final rule. Airworthiness Directives; Airbus SAS Airplanes
- Oct. 19, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes
- Oct. 19, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes
- Oct. 19, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Airbus SAS Airplanes
- Oct. 19, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Airbus Helicopters
- Oct. 22, 2026 Final rule. Airworthiness Directives; General Electric Company Engines
- Oct. 23, 2026 Final rule. Airworthiness Directives; MD Helicopters, LLC Helicopters
- Oct. 23, 2026 Final rule; correction. Airworthiness Directives; The Boeing Company Airplanes; Correction
- Oct. 27, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; CFM International, S.A. Engines
- Oct. 27, 2026 Final rule; request for comments. Airworthiness Directives; Airbus Helicopters
- Oct. 27, 2026 Final rule. Airworthiness Directives; Airbus Helicopters Deutschland GmbH (AHD) Helicopters
- Oct. 27, 2026 Final rule; request for comments. Airworthiness Directives; Airbus Helicopters
- Oct. 27, 2026 Final rule. Airworthiness Directives; Airbus SAS Airplanes
- Oct. 27, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes
- Oct. 27, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes
- Oct. 27, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes
- Oct. 27, 2026 Final rule. Airworthiness Directives; Ontic Engineering and Manufacturing, Inc. (Type Certificate Previously Held by Swearingen, Fairchild Aircraft, and M7 Aerospace) Airplanes
- Oct. 28, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Airbus Helicopters
- Nov. 2, 2026 Final rule; request for comments. Airworthiness Directives; BRP-Rotax GmbH & Co KG (Formerly BRP-Powertrain GMBH & CO KG and Bombardier-Rotax GmbH) Engines
- Nov. 2, 2026 Final rule. Airworthiness Directives; Diamond Aircraft Industries Inc. Airplanes
- Nov. 2, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes
- Nov. 2, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes
- Nov. 3, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; MD Helicopters, LLC Helicopters
- Nov. 3, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Embraer S.A. (Type Certificate Previously Held by Yaborã Indústria Aeronáutica S.A.; Embraer S.A.) Airplanes
- Nov. 3, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; The Boeing Company Airplanes
- Nov. 3, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Airbus Helicopters
- Nov. 4, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Pilatus Aircraft Ltd
- What happens next and when
The FAA must receive comments on this proposed AD by November 23, 2026.
The agency's dates, word for word.
The record as published
| Document number | 2026-20677 |
|---|---|
| Action | Notice of proposed rulemaking (NPRM). |
| Agencies | Transportation Department; Federal Aviation Administration |
| Published | Oct. 8, 2026 |
| Comments close | Nov. 23, 2026 |
| Regulation identifier (RIN) | 2120-AA64 |
| Docket | FAA-2026-11799 |
Source: the Federal Register (public domain). The document in the Federal Register