# Airworthiness Directives; Airbus SAS Airplanes
> **Rule** · Final rule. · Published 2026-07-30 · Effective 2026-09-03 · 91 FR 47948
## Document
- **Document number:** 2026-15455
- **Category:** airworthiness
- **Manufacturer:** Airbus SAS
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 91 FR 47948
- **Publication date:** 2026-07-30
- **Effective date:** 2026-09-03
- **FAA docket:** Docket No. FAA-2026-3873
## Abstract

The FAA is adopting 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 AD was prompted by a finding that, for airplanes with a flightcrew oxygen system supplied by a single oxygen cylinder, the oxygen supply would not be sufficient under all circumstances for extended operations (ETOPS) with a maximum diversion time of 180 minutes (ETOPS-180) with four flightcrew members. This AD requires 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 issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2026/07/30/2026-15455/airworthiness-directives-airbus-sas-airplanes)
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