Airworthiness Directive · Amendment 39-19493 · Fuselage
Airbus SAS Airplanes
This AD applies to Airbus SAS Model A350-941 airplanes, certificated in any category, except those on which Airbus modification 110319 or Airbus modification 110348 has been embodied in production.
We are adopting a new airworthiness directive (AD) for certain Airbus SAS Model A350-941 airplanes. This AD was prompted by a review of the Airbus A350 structure design principles database for type definition that revealed that the balancer fitting part, installed on the tail cone, on a certain frame (FR) has several corrosion-resistant stainless steel nuts that do not meet the requirements for protection against corrosion. This AD requires application of a new additional overcoat sealant and elastic varnish on the affected nuts and fasteners. We are issuing this AD to address the unsafe condition on these products.
Within 72 months since the date of issuance of the original airworthiness certificate or the date of issuance of the original export certificate of airworthiness, apply additional overcoat sealant and elastic varnish to the fastener heads and the anchor nuts of the balancer fitting at FR 103, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A350-53-P024, dated April 3, 2018.
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
