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Airworthiness Directive 2025-17516

recurring
AD 2025-17516 · 2025-09-11 · airframe

Airworthiness Directives; Costruzioni Aeronautiche Tecnam S.p.A. Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Costruzioni Aeronautiche Tecnam S.p.A. (Tecnam) Model P-Mentor airplanes. This AD was prompted by the failure of the pilot seat locking mechanism. This AD requires an initial and repetitive inspections of the seat rails of pilot and co-pilot seats and completing corrective action as needed. This AD includes an optional terminating action for the inspection requirement. The FAA is issuing this AD to address the unsafe condition on these products.

Repetitive inspection. Re-inspect every 110 hours. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2025-17516 applies to

MakesCostruzioni Aeronautiche Tecnam S.P.A.
ModelsP-Mentor
Serial-conditional — narrows to serials 1003–1056, 1064–1075, 1078–1082, 1089–1089, 1090–1090, 1118–1118, 1119–1119, 1124–1124, 1125–1125, 1126–1126.
Part-conditional — MOD2010/359.

Excludes airplanes with Tecnam modification MOD2010/359 installed, or TECNAM Service Bulletin SB 748-CS-Ed. 1, Rev. 0, dated April 22, 2024, embodied.

Whether AD 2025-17516 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 2025-17516 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.