Airworthiness directives › 2021-15-11
AD 2021-15-11 Airworthiness Directives; Airbus SAS Airplanes
Models named: A330-201, -202, -203, -223, -243, A330-301, -302, -303, -321, -322. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
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.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
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.
Unsafe condition
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. The FAA is issuing this AD to address increased flow resistance within the flightcrew oxygen system, which could lead to a reduced flow of oxygen supply to the flightcrew oxygen masks, and in combination with in-flight depressurization, smoke in the flight deck, or a smoke evacuation procedure, could lead to flightcrew hypoxia and loss of useful consciousness, resulting in loss of control of the airplane.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1