AD 2023-18-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Dassault | Aviation | Airworthiness Directives; Dassault Aviation Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Dassault Aviation Airplanes |
Unsafe Condition
Leaks in the wing anti-icing (WAI) system, which could lead to a loss of performance of the WAI protection system, possibly resulting in reduced control of the airplane.
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Required Actions
Perform a one-time general visual inspection of the WAI system for discrepancies, including incorrect installation, deformation, leakage or signs of overheating, and lack of free rotation of the clamp around the two ferrules, and, depending on findings, corrective actions, such as replacement or re-installation of the affected WAI Wiggins coupling with new seals and couplings. For the Falcon 2000 and Falcon 2000EX airplanes, there is an additional one-time general visual inspection of the WAI pipes for traces of abnormal leakage, overheating, or degradation of the thermal lagging, and depending on findings, corrective actions, such as replacement of the affected WAI pipes.
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Compliance Time
Within 50 flight hours
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Affected Aircraft
Dassault Aviation Model MYSTERE-FALCON 900, FALCON 900EX, FALCON 2000, and FALCON 2000EX airplanes, certificated in any category, as identified in European Union Aviation Safety Agency (EASA) AD 2023-0041, dated February 21, 2023 (EASA AD 2023-0041).
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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