EASA AD 2018-0290
Stabilizer — Vertical Stabilizer Tension Bolts — Modification
Summary
EASA Airworthiness Directive 2018-0290 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Airbus A350-941 aeroplanes. It addresses corrosion protection issues in the vertical stabilizer tension bolts, specifically the section 19 holes of the Vertical Tail Plane tension bolts connection. The directive mandates modifications to improve corrosion protection to maintain structural integrity.
What Changed
This directive supersedes EASA AD 2018-0045 and retains its requirements while clarifying modification instructions for Group 2 aeroplanes through Revision 01 of Airbus Service Bulletin A350-55-P002. It introduces updated procedures for applying sealant and protective treatment to the vertical stabilizer tension bolts to ensure proper corrosion protection.
Why It Matters
This directive is critical for maintaining the structural integrity of the vertical tail plane on Airbus A350-941 aircraft. Proper compliance prevents corrosion-related damage that could compromise flight safety. Operators, maintenance organizations, and compliance teams must ensure timely modifications to avoid regulatory violations and potential safety risks.
What To Do
Operators of affected Airbus A350-941 aeroplanes must implement the corrosion protection modification before exceeding 36 months from the aircraft's date of manufacture or within specified alternative compliance times. Group 1 aeroplanes must comply within 6 months after 1 March 2018, and Group 2 aeroplanes within 6 months after 4 January 2019, following the instructions in Revision 01 of Airbus Service Bulletin A350-55-P002.
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