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Airworthiness Directive 2020-19-11

recurring
Official AD 2020-19-11 · FR doc 2020-20750 · 2020-09-22 · airframe

Airworthiness Directives; Leonardo S.p.a. Helicopters

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Leonardo S.p.a. (Leonardo) Model A119 and AW119 MKII helicopters. This AD requires repetitive borescope inspections of the tail rotor gearbox (TGB) and depending on the inspection results, removing the TGB from service. This AD was prompted by reports of corrosion on the internal surface of the 90-degree TGB output shaft. The actions of this AD are intended to address an unsafe condition on these products.

Repetitive inspection. Re-inspect every 100 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 2020-19-11 applies to

MakesLeonardo S.P.A.
ModelsA119, AW119 MKII, AW119
Serial-conditional — narrows to serials 167–167, 169–172, 215–225, 227–227, 230–230, 232–232, 233–233, AW268–AW268, K3–K3, K16–K16, M47–M47, L29–L29.
Part-conditional — 109-0440-06-101, 109-0440-06-105.

Applies only to helicopters with a 90-degree tail rotor gearbox (TGB) P/N 109-0440-06-101 or 109-0440-06-105 having one of the listed serial numbers installed.

Whether AD 2020-19-11 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 2020-19-11 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.