Airworthiness Directives; The Boeing Company Airplanes
Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Nov. 3, 2026. Document 2026-22383. Updated Nov. 5, 2026.
Open for public comment until Dec. 18, 2026. Comment on Regulations.gov
- What it does
The FAA proposes to supersede Airworthiness Directive (AD) 2024-25-09, which applies to certain The Boeing Company Model 757 airplanes. AD 2024-25-09 requires installing new relays and changing certain wire bundles leading to the power transfer unit (PTU) control valve. Since the FAA issued AD 2024-25-09, the FAA determined that the requirements bulletin mandated by AD 2024-25-09 contains errors. In some cases, those errors prevent the actions required by AD 2024-25-09 from being fully accomplished. In other cases, the errors would allow actions that could introduce new hazards affecting the operation and thus the availability of the PTU. This proposed AD would require, depending on the airplane configuration, installing new relays and new connectors, changing certain wire bundles, doing an operational test, and applicable on-condition actions. 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
1084 earlier Federal Register documents under regulation identifier 2120-AA64 since Jan. 1, 2025.
- Nov. 3, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Airbus 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; MD Helicopters, LLC Helicopters
- Nov. 2, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes
- Nov. 2, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes
- Nov. 2, 2026 Final rule. Airworthiness Directives; Diamond Aircraft Industries Inc. Airplanes
- 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
- Oct. 28, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Airbus Helicopters
Since then:
- What happens next and when
The FAA must receive comments on this proposed AD by December 18, 2026.
The agency's dates, word for word.
The record as published
| Document number | 2026-22383 |
|---|---|
| Action | Notice of proposed rulemaking (NPRM). |
| Agencies | Transportation Department; Federal Aviation Administration |
| Published | Nov. 3, 2026 |
| Comments close | Dec. 18, 2026 |
| Regulation identifier (RIN) | 2120-AA64 |
| Docket | FAA-2026-11821 |
Source: the Federal Register (public domain). The document in the Federal Register