Airworthiness Directive · Amendment 39-21658 · Oxygen
Airbus SAS Airplanes
This AD applies to all Airbus SAS airplanes, certificated in any category, identified in paragraphs (c)(1) through (8) of this AD.
(1) Model A330-201, -202, -203, -223, and -243 airplanes.
(2) Model A330-301, -302, -303, -321, -322, -323, -341, -342, and -343 airplanes.
(3) Model A330-841 airplanes.
(4) Model A330-941 airplanes.
(5) Model A340-211, -212, and -213 airplanes.
(6) Model A340-311, -312, and -313 airplanes.
(7) Model A340-541 airplanes.
(8) Model A340-642 airplanes.
The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A330-200, -300, -800, and -900 series airplanes; and Model A340-200, -300, -500, and -600 series airplanes. This AD was prompted by reports that certain oxygen supply solenoid valves are a potential source of increased flow resistance within the flightcrew oxygen system. This AD requires a special detailed inspection (flow test) of certain solenoid valves, and replacement if necessary, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, European Union Aviation Safety Agency (EASA) AD 2020-0273, dated December 9, 2020 (EASA AD 2020-0273).
Note 1 to paragraph (g): Guidance for identifying affected oxygen supply solenoid valves as defined in EASA AD 2020-0273, can be found in Safran Service Information Letter SIL120, dated May 20, 2019.
(1) Where EASA AD 2020-0273 refers to its effective date, this AD requires using the effective date of this AD.
(2) The “Remarks” section of EASA AD 2020-0273 does not apply to this AD.
Although the service information referenced in EASA AD 2020-0273 specifies to submit certain information and return any affected solenoid valve to the manufacturer for repair, this AD does not require those actions.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
