Is AD 2017-06-11 a recurring Airworthiness Directive?

No — AD 2017-06-11 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2017-06-11 apply to?

AD 2017-06-11 applies to Airbus Helicopters — models EC120B, EC120. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2017-06-11

one-time

Official AD 2017-06-11 · FR doc 2017-07777 · 2017-04-21 · airframe

Airworthiness Directives; Airbus Helicopters

What this AD requires

We are superseding Emergency Airworthiness Directive (Emergency AD) 2015-24-51 for Airbus Helicopters Model EC120B. Emergency AD 2015-24-51 required inspections of the air conditioning system. This supersedure revises the applicability, some of the terminology, and the inspection requirements. This AD was prompted by a report of an abnormal noise during flight of a Model EC120B helicopter that resulted in a precautionary landing. We are issuing this AD to prevent an unsafe condition on these products.

Which aircraft AD 2017-06-11 applies to

MakesAirbus Helicopters

ModelsEC120B, EC120

Applies only to helicopters with an Air Comm Corporation air conditioning kit installed per STC No. SR00491DE, where the compressor is driven by a pulley installed aft of the rotor brake. Supersedes Emergency AD 2015-24-51.

Whether AD 2017-06-11 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 2017-06-11 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.