Is AD 2019-12-15 a recurring Airworthiness Directive?

No — AD 2019-12-15 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2019-12-15 apply to?

AD 2019-12-15 applies to Leonardo S.P.A. — models AB139, AW139. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2019-12-15

one-time

Official AD 2019-12-15 · FR doc 2019-13605 · 2019-06-28 · airframe

Airworthiness Directives; Leonardo S.p.A. Helicopters

What this AD requires

We are adopting a new airworthiness directive (AD) for certain Leonardo S.p.A. (Leonardo) Model AB139 and AW139 helicopters. This AD requires replacing screws installed on the left and right main landing gear (MLG) shock absorber assembly. This AD was prompted by a report that some screws may have been manufactured without meeting specifications. We are issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2019-12-15 applies to

MakesLeonardo S.P.A.

ModelsAB139, AW139

Part-conditional — 4G0000F00111.

Applies only to helicopters with an Increased Gross Weight 6,800 Kg kit P/N 4G0000F00111 installed, and with a main landing gear (MLG) assembly with a P/N and serial number listed in Figure 1 to the AD installed; the figure is not machine-readable from the source text.

Whether AD 2019-12-15 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 2019-12-15 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.