Is AD 2021-07687 a recurring Airworthiness Directive?

No — AD 2021-07687 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2021-07687 apply to?

AD 2021-07687 applies to Sikorsky — models S-92A, S-92. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2021-07687

one-time

AD 2021-07687 · 2021-04-14 · airframe

Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

What this AD requires

The FAA is superseding Airworthiness Directive (AD) 2021-04-16 which applied to certain Sikorsky Aircraft Corporation (Sikorsky) Model S-92A helicopters. AD 2021-04-16 required a one-time inspection of the landing gear for components with non-conforming threads and removal of any non-conforming threaded hinge pin and main landing gear (MLG) and nose landing gear (NLG) actuator pins. AD 2021-04-16 also prohibited installing certain part-numbered hinge and actuator pins on any helicopter. This AD requires the same actions but corrects erroneous part numbers. This AD was prompted by the discovery that certain part numbers listed in AD 2021-04-16 are incorrect. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2021-07687 applies to

MakesSikorsky

ModelsS-92A, S-92

Serial-conditional — narrows to serials 920006–920334.

Whether AD 2021-07687 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

Supersession

Supersedes AD 2021-04-16.

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 2021-07687 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.