Is AD 2017-07-09 a recurring Airworthiness Directive?

No — AD 2017-07-09 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2017-07-09 apply to?

AD 2017-07-09 applies to Sikorsky Aircraft Corporation — models S-92A, S-92. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2017-07-09

one-time

Official AD 2017-07-09 · FR doc 2017-06708 · 2017-04-07 · airframe

Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

What this AD requires

We are adopting a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S-92A helicopters. This AD requires removing from service the tail gearbox center housing (housing) when it has 12,200 or more hours time-in-service (TIS). This AD was prompted by fatigue analysis conducted by Sikorsky that determined the housing required a retirement life. The actions are intended to prevent an unsafe condition on these products.

Which aircraft AD 2017-07-09 applies to

MakesSikorsky Aircraft Corporation

ModelsS-92A, S-92

Part-conditional — 92358-06107-043.

Applies only to helicopters with a tail gearbox center housing P/N 92358-06107-043 installed.

Whether AD 2017-07-09 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 2017-07-09 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.