Data / Federal rules / 2026-08289
Airworthiness Directives; Airbus SAS Airplanes
The Federal Aviation Administration published this proposed rule in the Federal Register on April 29, 2026. Comments closed on June 15, 2026.
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What the agency says
The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus SAS Model A330-200 and A330-300 series airplanes modified by a certain supplemental type certificate (STC). This proposed AD was prompted by a finding that, for airplanes with a flightcrew oxygen system supplied by a single oxygen cylinder, the oxygen supply would be insufficient under all circumstances for extended operations (ETOPS) with a with a maximum diversion time of 180 minutes (ETOPS-180) with four flightcrew members. This proposed AD would require revising the existing Airplane Flight Manual Supplement (AFM-S) to limit ETOPS-180 operations to three flightcrew members, as applicable, and correct minimum oxygen dispatch pressure information. The FAA is proposing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2026-08289
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM)
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- April 29, 2026
- Comments due
- June 15, 2026
- Dates
- The FAA must receive comments on this proposed AD by June 15, 2026.
- Docket
- Docket No. FAA-2026-3873; Project Identifier MCAI-2025-00197-T
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 3
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in April 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.