Airworthiness Directive · Amendment 39-22398 · Pneumatic
Airbus SAS Airplanes
This AD applies to all Airbus SAS Model A350-941 and -1041 airplanes, certificated in any category.
The FAA is superseding Airworthiness Directive (AD) 2021-08- 08, which applied to all Airbus SAS Model A350-941 and -1041 airplanes. AD 2021-08-08 required replacing affected bleed duct assemblies and bleed gimbals at the wing-to-pylon interface, and prohibited the installation of affected parts. This AD was prompted by a report of a welding quality issue in the gimbal joint of the air bleed duct at each wing-to-pylon interface and the consequent deformation of the gimbal inner ring, and by new findings that affected bleed gimbals were found on certain airplanes that did not have any maintenance record of affected part replacement. This AD continues to require the actions in AD 2021-08-08 and, for certain airplanes, requires inspection of the bleed gimbals to determine the part number, 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 paragraphs (h) and (i) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, European Union Aviation Safety Agency (EASA) AD 2022-0156, dated August 2, 2022 (EASA AD 2022-0156).
(1) Where EASA AD 2022-0156 refers to its effective date, this AD requires using the effective date of this AD.
(2) Where paragraph (6) of EASA AD 2022-0156 refers to August 26, 2020 (the effective date of EASA AD 2020-0169R1), this AD requires using May 25, 2021 (the effective date of AD 2021-08-08).
(3) Where the definition of “Groups” in EASA AD 2022-0156 specifies Group 1 airplanes are those manufacturer serial numbers (MSN) listed in certain service information, replace the text “Airbus Service Bulletin (SB) A350-36-P021 and SB A350-36-P022” with “Airbus Service Bulletin A350-36-P021, dated January 17, 2020; and Airbus Service Bulletin A350-36-P022, dated January 17, 2020.”
(4) Where the definition of “Groups” in EASA AD 2022-0156 specifies Group 2 airplanes are those MSN listed in certain service information, replace the text “Airbus SB A350-36-P029” with “Airbus Service Bulletin A350-36-P029, Revision 01, dated February 3, 2022.”
(5) This AD does not adopt the Remarks paragraph of EASA AD 2022-0156.
Although the service information referenced in EASA AD 2022-0156 specifies to submit certain information to the manufacturer, this AD does not include that requirement.
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or responsible Flight Standards Office, as appropriate. If sending information directly to the International Validation Branch the attention of the person identified in paragraph (k) of this AD. Information may be emailed to: 9-AVS-AIR-730-AMOC@faa.gov. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office.
(2) Contacting the Manufacturer: For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, International Validation Branch, FAA; or EASA; or Airbus SAS's EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature.
(3) Required for Compliance (RC): Except as required by paragraph (j)(2) of this AD, if any service information contains procedures or tests that are identified as RC, those procedures and tests must be done to comply with this AD; any procedures or tests that are not identified as RC are recommended. Those procedures and tests that are not identified as RC may be deviated from using accepted methods in accordance with the operator's maintenance or inspection program without obtaining approval of an AMOC, provided the procedures and tests identified as RC can be done and the airplane can be put back in an airworthy condition. Any substitutions or changes to procedures or tests identified as RC require approval of an AMOC.
For more information about this AD, contact Dat Le, Aerospace Engineer, Large Aircraft Section, FAA, International Validation Branch, 2200 South 216th Street, Des Moines, WA 98198; telephone 516-228-7317; email dat.v.le@faa.gov.
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
