Is AD 2005-25-12 a recurring Airworthiness Directive?

No — AD 2005-25-12 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2005-25-12 apply to?

AD 2005-25-12 applies to Turbomeca — models Astazou XIV B, Astazou XIV H, Astazou. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2005-25-12

one-time

Official AD 2005-25-12 · FR doc 05-23827 · 2005-12-13 · turboshaft engine

Airworthiness Directives; Turbomeca Astazou XIV B and XIV H Turboshaft Engines

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for Turbomeca Astazou XIV B and XIV H turboshaft engines that have operated with air intake noise suppressors. This AD requires ensuring proper installation of air intake noise suppressors, and ultrasonically inspecting 2nd stage axial compressor wheel blades operated in engines with improperly installed intake noise suppressors. This AD results from several reports of failure of 2nd stage axial compressor wheel blades. We are issuing this AD to prevent failure of 2nd stage axial compressor wheel blades, leading to in-flight engine shutdown and autorotation landing.

Which aircraft AD 2005-25-12 applies to

MakesTurbomeca

ModelsAstazou XIV B, Astazou XIV H, Astazou

Applies only to engines that have operated with air intake noise suppressors.

Whether AD 2005-25-12 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 2005-25-12 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.