Airworthiness Directive · Amendment 39-21432 · Air conditioning
Airbus SAS Airplanes
This AD applies to Airbus SAS Model A350-941 airplanes, certificated in any category, as identified in European Union Aviation Safety Agency (EASA) AD 2020-0167, dated July 27, 2020 (EASA AD 2020-0167).
The FAA is superseding Airworthiness Directive (AD) 2020-01- 10, which applied to certain Airbus SAS Model A350-941 airplanes. AD 2020-01-10 required installing flight control and guidance system (FCGS) software (SW) X11 Standard (STD). This AD retains the requirements of AD 2020-01-10, requires modifying the electrical power supply of the air generation system (AGS) ram air outlet door actuators, and expands the applicability by adding airplanes, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD was prompted by the development of a modification that forces the AGS ram air outlet doors to be flush in cases of total engine flameout or loss of the main electrical supply. Because of this additional modification, certain airplanes that were excluded from the applicability of AD 2020-01-10 are included in the applicability of this AD. 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, EASA AD 2020-0167.
(1) Where EASA AD 2020-0167 refers to its effective date, this AD requires using the effective date of this AD.
(2) Where EASA AD 2020-0167 refers to September 3, 2019 (the effective date of EASA AD 2019-0203), this AD requires using March 12, 2020 (the effective date of AD 2020-01-10).
(3) The “Remarks” section of EASA AD 2020-0167 does not apply to this AD.
Although the service information referenced in EASA AD 2020-0167 specifies 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.
Aircraft
