Superseded by EASA AD 2018-0290
Superseded. Comply with 2018-0290, which replaces this document.
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Airbus A350-941 aeroplanes not already modified with Airbus production mods 108307, 110696, or 110898 must perform the required modification. This includes applying sealant and protective treatments and installing shouldered caps as specified in Airbus Service Bulletin A350-55-P002. The modification must be completed before exceeding 36 months from the aircraft's date of manufacture or within 6 months after 1 March 2018, whichever is later.
Summary
EASA Airworthiness Directive 2018-0045 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Airbus A350-941 aeroplanes. It addresses corrosion protection issues related to the vertical stabilizer tension bolts on these aircraft. The directive mandates a modification to improve corrosion protection and maintain structural integrity of the vertical tail plane.
What changed
EASA Airworthiness Directive 2018-0045 introduces a required modification involving the application of sealant and protective treatment to the heads of the vertical tail plane tension bolts, barrel nut cavities, and surrounding areas. It also requires removal of barrel nut plates if installed and installation of shouldered caps with overlapping sealant. The directive was corrected to clarify the modification text.
Why it matters
This directive is critical for aviation professionals because corrosion in the vertical stabilizer tension bolts can compromise the structural integrity of the vertical tail plane, posing safety risks. Operators and maintenance organizations must ensure compliance to prevent potential structural failures and maintain airworthiness. Compliance with this AD is mandatory under EU regulations, impacting maintenance planning and aircraft availability.
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