Standard Practices and Structures – DECOMATIC Titanium Bolts – Replacement
Superseded. Comply with 2023-0207, 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 affected Falcon 7X, Falcon 900EX, and Falcon 2000EX aircraft must replace the identified titanium screws with serviceable parts within the compliance times specified: before exceeding 98 months or 4,000 flight cycles for Falcon 7X, 74 months or 3,750 flight cycles for Falcon 900EX, and corresponding limits for Falcon 2000EX. From the effective date, only serviceable titanium screws may be installed. Compliance must follow the instructions in the applicable Dassault Service Bulletins.
Summary
EASA Airworthiness Directive 2021-0047 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Dassault Aviation Falcon 7X, Falcon 900EX, and Falcon 2000EX aeroplanes. It addresses the replacement of certain Decomatic Titanium bolts that were improperly heat treated during manufacturing, potentially compromising structural integrity. The directive applies to specific serial numbers of these aircraft models, including variants known as Falcon 8X, F900LX, F2000LXS, and F2000S.
What changed
EASA Airworthiness Directive 2021-0047 introduces a mandatory replacement of affected Decomatic Titanium screws with serviceable parts due to a manufacturing defect involving excessive hydrogen concentration. It requires operators to replace these parts within specified flight cycle or calendar time limits to prevent premature failure. The directive also restricts installation to only serviceable titanium screws from the effective date.
Why it matters
This directive is critical for aviation professionals because the affected titanium bolts are installed in structural areas where failure could reduce the aircraft's structural integrity, posing safety risks. Operators, maintenance organizations, and compliance teams must ensure timely replacement to maintain airworthiness and regulatory compliance. Failure to comply could result in grounding or operational restrictions.
More for Dassault Falcon 2000
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- EASA AD 2026-0040Time Limits / Maintenance Checks — Airworthiness Limitations Section — AmendmentFeb 27, 2026
- EASA AD 2026-0041Time Limits / Maintenance Checks — Airworthiness Limitations Section — AmendmentFeb 27, 2026
- EASA AD 2025-0228R1Standard Practices and Structures — DECOMATIC Titanium Bolts — ReplacementFeb 6, 2026
- EASA AD 2026-0012
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