Airworthiness Directive · Amendment 39-21585 · Time limits/maintenance checks
Airbus SAS Airplanes
Superseded. A later AD replaced this one: AD 2022-01-07. Comply with the one in force.
This AD applies to Airbus SAS Model A350-941 and -1041 airplanes, certificated in any category; with an original airworthiness certificate or original export certificate of airworthiness issued after September 15, 2020.
The FAA is adopting a new airworthiness directive (AD) for certain Airbus SAS Model A350-941 and -1041 airplanes. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD also requires, for certain airplanes, an update of the hydraulic monitoring system to include additional redundancy. 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 2020-0268, dated December 4, 2020 (EASA AD 2020-0268).
(1) Where Section 6 of the service information referenced in EASA AD 2020-0268 specifies to update the hydraulic monitoring system “to include additional redundancy to be installed (MOD 114073 and MOD 114075 OR 114531 and MOD 114075 OR MOD 114533 and MOD 114075 OR MOD 114535 and MOD 114075),” this AD requires that the update of the hydraulic monitoring system be accomplished using the method of compliance specified in paragraphs (h)(1)(i) through (iv) of this AD, as applicable.
(i) For Model A350-941 airplanes identified in Airbus Service Bulletin A350-29-P025 (MOD 114531 and MOD 114075): The modification must be done in accordance with paragraphs 3.C., 3.D., and 3.E. of the Accomplishment Instructions of Airbus Service Bulletin A350-29-P025, dated August 10, 2020.
(ii) For Model A350-941 airplanes identified in Airbus Service Bulletin A350-29-P027 (MOD 114533 and MOD 114075): The modification must be done in accordance with paragraphs 3.C., 3.D., and 3.E. of the Accomplishment Instructions of Airbus Service Bulletin A350-29-P027, dated November 24, 2020.
(iii) For Model A350-941 airplanes identified in Airbus Service Bulletin A350-29-P029 (MOD 114535 and MOD 114075): The modification must be done in accordance with paragraphs 3.C., 3.D., and 3.E. of the Accomplishment Instructions of Airbus Service Bulletin A350-29-P029, dated December 16, 2020.
(iv) For Model A350-941 airplanes not identified in paragraphs (h)(1)(i) through (iii) of this AD, and without MOD 114073 and 114075 installed in production: The modification must be done using a method approved by the Manager, Large Aircraft Section, 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.
(2) Where EASA AD 2020-0268 refers to its effective date, this AD requires using the effective date of this AD.
(3) The requirements specified in paragraphs (1) and (2) of EASA AD 2020-0268 do not apply to this AD.
(4) Paragraph (3) of EASA AD 2020-0268 specifies revising “the approved AMP” within 12 months after its effective date, but this AD requires revising the existing maintenance or inspection program, as applicable, within 90 days after the effective date of this AD.
(5) The initial compliance time for doing the tasks specified in paragraph (3) of EASA AD 2020-0268 is at the applicable “thresholds” as incorporated by the requirements of paragraph (3) of EASA AD 2020-0268, or within 90 days after the effective date of this AD, whichever occurs later.
(6) The provisions specified in paragraphs (4) and (5) of EASA AD 2020-0268 do not apply to this AD.
(7) The “Remarks” section of EASA AD 2020-0268 does not apply to this AD.
After the existing maintenance or inspection program has been revised as required by paragraph (g) of this AD, no alternative actions (e.g., inspections), intervals, and CDCCLs are allowed unless they are approved as specified in the provisions of the “Ref. Publications” section of EASA AD 2020-0268.
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
