Airworthiness Directive · Amendment 39-21507 · Oxygen
Airbus SAS Airplanes
This AD applies to all Airbus SAS airplanes specified in paragraphs (c)(1) through (4) of this AD, certificated in any category.
(1) Model A318-111, A318-112, A318-121, and A318-122 airplanes.
(2) Model A319-111, A319-112, A319-113, A319-114, A319-115, A319-131, A319-132, and A319-133 airplanes.
(3) Model A320-211, A320-212, A320-214, A320-216, A320-231, A320-232, and A320-233 airplanes.
(4) Model A321-111, A321-112, A321-131, A321-211, A321-212, A321-213, A321-231, and A321-232 airplanes.
The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A318 series airplanes; Model A319-111, A319-112, A319- 113, A319-114, A319-115, A319-131, A319-132, and A319-133 airplanes; Model A320-211, A320-212, A320-214, A320-216, A320-231, A320-232, and A320-233 airplanes; and Model A321-111, A321-112, A321-131, A321-211, A321-212, A321-213, A321-231, and A321-232 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 detailed inspection (flow test) of certain solenoid valves, and replacement if necessary, as specified in European Union Aviation Safety Agency (EASA) ADs, which are 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 2020-0104, dated May 7, 2020 (EASA AD 2020-0104) or EASA AD 2020-0104R1, dated January 28, 2021 (EASA AD 2020-0104R1).
(1) Where EASA AD 2020-0104 refers to its effective date, this AD requires using the effective date of this AD.
(2) Where EASA AD 2020-0104R1 refers to May 21, 2020 “[the effective date of the original issue of this [EASA] AD],” this AD requires using the effective date of this AD.
(3) The “Remarks” sections of EASA ADs 2020-0104 and 2020-0104R1 do not apply to this AD.
(4) Where procedure step 3.E.(1) of the Accomplishment Instructions of Airbus SAS Service Bulletin A320-35-1096, dated September 18, 2019, specified in EASA ADs 2020-0104 and 2020-0104R1, requires a test of the solenoid valve, this AD allows deviation from that Required for Compliance (RC) action, as specified in Airbus SAS Technical Adaptation 80843604/008/2020, Issue 1, dated November 3, 2020.
Although the service information referenced in EASA ADs 2020-0104 and 2020-0104R1 specify to submit certain information to the manufacturer, this AD does not include that requirement.
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.
