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Airworthiness Directive 2021-16-06

recurring
Official AD 2021-16-06 · FR doc 2021-17951 · 2021-08-23 · airframe

Airworthiness Directives; Leonardo S.p.a. Helicopters

What this AD requires

The FAA is superseding Airworthiness Directive (AD) 2020-19-11 for certain Leonardo S.p.a. Model A119 and AW119 MKII helicopters. AD 2020-19-11 required repetitive borescope inspections of the 90-degree tail rotor gearbox (TGB) and depending on the inspection results, removing the TGB from service. This AD was prompted by the determination that additional parts may be susceptible to the unsafe condition. This AD retains the inspection requirements of AD 2020-19-11, and revises the compliance time and applicability. The FAA is issuing this AD to address the unsafe condition on these products.

Repetitive inspection. Re-inspect every 100 hours or 6 months. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2021-16-06 applies to

MakesLeonardo S.P.A.
ModelsA119, AW119 MKII
Part-conditional — 109-0440-06-101, 109-0440-06-105, 109-0443-03-107.

Applies only to helicopters with 90-degree tail rotor gearbox (TGB) P/N 109-0440-06-101 or 109-0440-06-105, and with TGB shaft P/N 109-0443-03-107 having a serial number listed in Table 1 of Leonardo Helicopters Alert Service Bulletin No. 119-090, Revision A, dated September 14, 2020, installed.

Whether AD 2021-16-06 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 2021-16-06 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.