Is AD 2005-12-03 a recurring Airworthiness Directive?

Yes — AD 2005-12-03 requires a repetitive inspection every 50 hours. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2005-12-03 apply to?

AD 2005-12-03 applies to Sikorsky — models S-92A, 92. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2005-12-03

recurring

Official AD 2005-12-03 · FR doc 05-11516 · 2005-06-14 · airframe

Airworthiness Directives; Sikorsky Aircraft Corporation Model S-92A Helicopters

What this AD requires

This amendment adopts a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S-92A helicopters. This action requires replacing the main gearbox (MGB) lubrication/scavenge pump vespel spline adapters (vespel spline adapters) before further flight, and thereafter, replacing them at certain intervals. This amendment is prompted by a reported incident of an in-flight loss of oil pressure. The actions specified in this AD are intended to prevent loss of lubrication to the MGB, which could cause failure of one or both engine input drives, or planetary gear to sun gear tooth mesh failure, resulting in loss of power to the rotor system and subsequent loss of control of the helicopter.

Repetitive inspection. Re-inspect every 50 hours. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2005-12-03 applies to

MakesSikorsky

ModelsS-92A, 92

Part-conditional — 92351-15800-101, 1584000-1.

Applies only if main gearbox (MGB) lubrication/scavenge pump P/N 92351-15800-101 with vespel spline adapter P/N 1584000-1 is installed.

Whether AD 2005-12-03 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 2005-12-03 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.