Is AD 2013-05-01 a recurring Airworthiness Directive?

No — AD 2013-05-01 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2013-05-01 apply to?

AD 2013-05-01 applies to Turbomeca — models Makila 1A2. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2013-05-01

one-time

Official AD 2013-05-01 · FR doc 2013-04996 · 2013-03-06 · turboshaft engine

Airworthiness Directives; Turbomeca S.A. Turboshaft Engines

What this AD requires

We are superseding an existing airworthiness directive (AD) for all Turbomeca S.A. Makila 1A2 turboshaft engines. That AD currently requires replacement of certain serial number (S/N) N2 sensor harnesses. This AD requires replacement of the same S/N harnesses, and requires replacement of additional S/N N2 sensor harnesses. This AD was prompted by corrosion detected in affected N2 sensor harnesses. We are issuing this AD to prevent inadvertent activation of the 65% N1 back up mode, resulting in N2 speed fluctuation, significant power loss, and emergency landing of the helicopter.

Which aircraft AD 2013-05-01 applies to

MakesTurbomeca

ModelsMakila 1A2

Serial-conditional — narrows to serials 242–339, 691–705, 707–728, 813–844.

Part-conditional — 0 301 52 001 0.

Applies only to engines with an N2 sensor harness, P/N 0 301 52 001 0, installed, within the listed serial number ranges.

Whether AD 2013-05-01 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 2013-05-01 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.