Airworthiness Directives; Airbus SAS Airplanes
Published Date: 7/30/2026
Rule
Summary
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.
Analyzed Economic Effects
2 provisions identified: 1 benefits, 1 costs, 0 mixed.
ETOPS-180 Flights Limited to 3 Crew
If your airplane is an Airbus A330-200 or A330-300 converted under FAA STC ST04038NY (EASA STC S10063798) and has a flightcrew oxygen system supplied by a single oxygen cylinder, the AD requires limiting ETOPS operations with a 180-minute diversion (ETOPS-180) to three flightcrew members instead of four. This change is effective September 3, 2026 and is intended to prevent insufficient oxygen supply in emergency ETOPS-180 situations.
AFM-S Oxygen Dispatch Info Update and Compliance Cost
The AD requires updating the Airplane Flight Manual Supplement (AFM-S) to correct the minimum oxygen dispatch pressure information and incorporate the ETOPS-180 three-crew limitation. The FAA estimates this AD affects 11 U.S.-registered airplanes and that the required action will take 1 work-hour at $85 per airplane (total estimated cost to U.S. operators: $935). The AD is effective September 3, 2026.
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The FAA is adopting a new airworthiness directive (AD) for all Stemme GmbH (Stemme) Model Stemme S 12 gliders. This AD was prompted by reports of fuel leaking around certain copper sealing rings within the fuel system. This AD requires repetitive visual checks of the fuel system for fuel leakage, and replacement of the affected copper sealing ring. This AD also prohibits the installation of affected parts. The FAA is issuing this AD to address the unsafe condition on these products.