Is AD 2009-25-09 a recurring Airworthiness Directive?

No — AD 2009-25-09 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2009-25-09 apply to?

AD 2009-25-09 applies to Eurocopter — models SA330F, SA330G, SA330J, SA330. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2009-25-09

one-time

Official AD 2009-25-09 · FR doc E9-29424 · 2009-12-14 · airframe

Airworthiness Directives; Eurocopter France Model SA 330 F, G, and J Helicopters

What this AD requires

We are adopting a new airworthiness directive (AD) for the specified Eurocopter France (Eurocopter) helicopters. This AD results from a mandatory continuing airworthiness information (MCAI) AD issued by the European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Community. The MCAI Emergency AD states that there has been a report of the failure of a flexible coupling on one of the main gearbox (MGB) inputs, which may be the result of loss of the tightening torque load, or insufficient tightening of the nuts on the bolts fixing the discs of the flexible coupling to its sliding and fixed hinges. This condition, if not corrected, could result in failure of the coupling discs, and if this condition develops on both the left-hand (LH) and right-hand (RH) MGB inputs, a complete loss of power to the transmission and subsequent loss of control of the helicopter.

Which aircraft AD 2009-25-09 applies to

MakesEurocopter

ModelsSA330F, SA330G, SA330J, SA330

Part-conditional — 330A-32937401.

Applies to helicopters (all serial numbers) with main gearbox (MGB) input flexible coupling flange assemblies, P/N 330A-32937401, installed, that have been modified per MOD 0752416 and MOD 0752419 but have not been subject to a maintenance scheduled inspection per Working Card 65.32.601 since new or since a complete overhaul of the MGB.

Whether AD 2009-25-09 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 2009-25-09 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.