Airworthiness directives › 2018-23-07
AD 2018-23-07 Airworthiness Directives; Airbus SAS Airplanes
Models named: A350-941. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
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.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
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.
Unsafe condition
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, lower section of frame (FR) 103, has several corrosion-resistant stainless steel nuts installed on elementary aluminum parts, and this configuration does not meet the requirements for protection against corrosion. We are issuing this AD to address this condition, which if not corrected, could reduce the structural integrity of the airplane.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1