Is AD 2006-15-19 a recurring Airworthiness Directive?

No — AD 2006-15-19 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2006-15-19 apply to?

AD 2006-15-19 applies to Sikorsky — models S-92A, S-92. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2006-15-19

one-time

Official AD 2006-15-19 · FR doc E6-12305 · 2006-08-01 · airframe

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

What this AD requires

This amendment adopts a new airworthiness directive (AD) for the Sikorsky Aircraft Corporation (Sikorsky) Model S-92A helicopters. This action requires, before further flight, replacing a certain main gearbox (MGB) upper main housing assembly (housing assembly) that has 2700 or more hours time-in-service (TIS) with an airworthy part. This action also requires, before further flight, revising the Airworthiness Limitations section (ALS) of the maintenance manual by establishing a new retirement life for the MGB housing assembly of 2700 hours TIS. This amendment is prompted by testing of the MGB housing assembly that resulted in premature fatigue failure due to a manufacturing process creating an oxide skin defect in the housing. The actions specified in this AD are intended to prevent fatigue failure of the MGB housing, loss of MGB lube oil, loss of main and tail rotor drive, and subsequent loss of control of the helicopter.

Which aircraft AD 2006-15-19 applies to

MakesSikorsky

ModelsS-92A, S-92

Part-conditional — 92351-15110-042.

Applies only when main gearbox (MGB) upper main housing assembly P/N 92351-15110-042 is installed.

Whether AD 2006-15-19 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 2006-15-19 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.