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Airworthiness Directive 2026-08-05

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Official AD 2026-08-05 · FR doc 2026-08031 · 2026-04-24 · airframe

Airworthiness Directives; Dassault Aviation Airplanes

What this AD requires

The FAA is superseding Airworthiness Directive (AD) 2023-18- 07, which applied to certain Dassault Aviation Model MYSTERE-FALCON 20- C5, 20-D5, 20-E5, and 20-F5 airplanes. AD 2023-18-07 required revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. Since the FAA issued AD 2023-18-07, the FAA has determined that new or more restrictive airworthiness limitations are necessary. This AD continues to require certain actions in AD 2023-18-07 and requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2026-08-05 applies to

MakesDassault Aviation
ModelsMYSTERE-FALCON 20-C5, MYSTERE-FALCON 20-D5, MYSTERE-FALCON 20-E5, MYSTERE-FALCON 20-F5, MYSTERE-FALCON 20

Applicability determined by aircraft identified in European Union Aviation Safety Agency (EASA) AD 2025-0123, dated May 28, 2025.

Whether AD 2026-08-05 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

How AD compliance is recorded

A valid compliance record (14 CFR 43.9) states:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.
Date — When the work was done.
Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.
Signature & certificate — The A&P/IA who returned it to service, with certificate number.
Is AD 2026-08-05 complied with on your aircraft?

Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.

Look up a tail number →Read the full directive (Federal Register)

Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.