Is AD 2019-19-12 a recurring Airworthiness Directive?

No — AD 2019-19-12 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2019-19-12 apply to?

AD 2019-19-12 applies to Sikorsky Aircraft Corporation — models S-76C, S-76. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2019-19-12

one-time

Official AD 2019-19-12 · FR doc 2019-21564 · 2019-10-04 · airframe

Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

What this AD requires

The FAA is superseding Airworthiness Directive (AD) 2018-10-07 for Sikorsky Aircraft Corporation (Sikorsky) Model S-76C helicopters. AD 2018-10-07 required inspecting the engine collective position transducer (CPT). This new AD retains the requirements of AD 2018-10-07 and expands the applicability. This AD is prompted by the determination that an additional part-numbered engine CPT is affected by the same unsafe condition. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2019-19-12 applies to

MakesSikorsky Aircraft Corporation

ModelsS-76C, S-76

Part-conditional — 76900-01821-104, 76900-01821-105.

Applies to helicopters with a Turbomeca, S.A., Arriel 2S1 or Arriel 2S2 engine having an engine collective position transducer (CPT) P/N 76900-01821-104 or 76900-01821-105 installed.

Whether AD 2019-19-12 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 2019-19-12 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.