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Airworthiness Directive 2026-09-13

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Official AD 2026-09-13 · FR doc 2026-09658 · 2026-05-14 · airframe

Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for all ATR--GIE Avions de Transport R[eacute]gional Model ATR42-200, -300, and -320 airplanes. This AD was prompted by a report of an occurrence of a flap asymmetry detector and flap interconnection shaft having worn splines and not engaging mechanically. This AD requires a special detailed inspection (SDI) of the affected flap asymmetry detection mechanism, and applicable corrective actions. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2026-09-13 applies to

MakesAtr - Gie Avions De Transport Regional
ModelsATR42-200, ATR42-300, ATR42-320, ATR42

Applies to all listed airplanes, certificated in any category.

Whether AD 2026-09-13 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 2026-09-13 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.