Is AD 2015-07-04 a recurring Airworthiness Directive?

No — AD 2015-07-04 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2015-07-04 apply to?

AD 2015-07-04 applies to Pilatus Aircraft Ltd. — models PC-7. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2015-07-04

one-time

Official AD 2015-07-04 · FR doc 2015-07858 · 2015-04-14 · airframe

Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for PILATUS Aircraft Ltd. Model PC-7 airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as the potential for a spring on the air conditioning compressor clutch plate to shear the oil cooler inlet-hose due to the close routing of these parts without a protective cover. We are issuing this AD to require actions to address the unsafe condition on these products.

Which aircraft AD 2015-07-04 applies to

MakesPilatus Aircraft Ltd.

ModelsPC-7

Part-conditional — 21-006.

Applies only to airplanes that have NOT incorporated the actions of any version of Pilatus PC-7 Service Bulletin No. 21-006 (installation of a different air conditioning compressor at a different location).

Whether AD 2015-07-04 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 2015-07-04 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.