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Airworthiness Directive 2025-25-13

recurring
Official AD 2025-25-13 · FR doc 2025-23861 · 2025-12-29 · airframe

Airworthiness Directives; Leonardo S.p.A. Helicopters

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for all Leonardo S.p.A. Model A119 and AW119 MKII helicopters. This AD was prompted by reports of trapped residue in the rear pneumatic line due to a non-optimal cleaning procedure. This AD requires accomplishing repetitive engine acceleration checks and, depending on the results, replacing the rear pneumatic line and inspecting the fuel control unit (FCU), and accomplishing any necessary corrective actions. This AD also requires replacing certain parts if the engine acceleration check exceeds the maximum limit, which terminates the repetitive acceleration checks. If the limits do not exceed the maximum limit, this AD would allow this replacement as an optional terminating action. Additionally, this AD prohibits installing an affected engine or FCU on a helicopter unless certain requirements are met. The FAA is issuing this AD to address the unsafe condition on these products.

Repetitive inspection. Re-inspect. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2025-25-13 applies to

MakesLeonardo S.P.A.
ModelsA119, AW119 MKII, AW119

Whether AD 2025-25-13 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 2025-25-13 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.