Is AD 2014-04-13 a recurring Airworthiness Directive?

No — AD 2014-04-13 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2014-04-13 apply to?

AD 2014-04-13 applies to Agusta — models AB412, AB412 EP. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2014-04-13

one-time

Official AD 2014-04-13 · FR doc 2014-04274 · 2014-03-10 · airframe

Airworthiness Directives; Agusta S.p.A. Helicopters

What this AD requires

We are adopting a new airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model AB412 and AB412 EP helicopters. This AD requires inspecting the tail rotor (T/R) blade for a crack, corrosion, nick, scratch, dent, or other damage and replacing or repairing the blade, depending on the damage. This AD is prompted by reports of T/R blade failures caused by fatigue cracking that originated from surface damage. These actions are intended to prevent failure of the T/R blade and subsequent loss of control of the helicopter.

Which aircraft AD 2014-04-13 applies to

MakesAgusta

ModelsAB412, AB412 EP

Part-conditional — 212-010-750.

Applies only when a tail rotor (T/R) blade, part number 212-010-750 (all dash numbers), is installed.

Whether AD 2014-04-13 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 2014-04-13 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.