Is AD 2013-05-15 a recurring Airworthiness Directive?

No — AD 2013-05-15 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2013-05-15 apply to?

AD 2013-05-15 applies to Robinson Helicopter Company — models R44, R44 II. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2013-05-15

one-time

Official AD 2013-05-15 · FR doc 2013-06297 · 2013-03-26 · airframe

Airworthiness Directives; Robinson Helicopter Company Helicopters

What this AD requires

We are adopting a new airworthiness directive (AD) for Robinson Helicopter Company (Robinson) Model R44 and R44 II helicopters equipped with emergency floats. This AD requires replacing the inflation valve assembly. This AD was prompted by the failure of the emergency floats to deploy during a factory test because a needle was binding within the inflation valve assembly. The actions are intended to prevent the failure of the floats to inflate during an emergency landing.

Which aircraft AD 2013-05-15 applies to

MakesRobinson Helicopter Company

ModelsR44, R44 II

Part-conditional — D757-1, D758-1.

Applies only to helicopters with emergency floats equipped with an inflation valve assembly P/N D757-1, not engraved with 'D758-4' or modified with modification B900-8, and containing a housing assembly P/N D758-1, Revision C or prior.

Whether AD 2013-05-15 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 2013-05-15 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.