Airworthiness Directive 2018-03-01

one-time
Official AD 2018-03-01 · FR doc 2018-01573 · 2018-01-30 · airframe

Airworthiness Directives; Agusta S.p.A. Helicopters

What this AD requires

We are adopting a new airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model AB139 and AW139 helicopters. This AD requires inspecting the main rotor blade (MRB) tip cap for disbonding. This AD is prompted by a report of the in-flight loss of an MRB tip cap. The actions of this AD are intended to prevent an unsafe condition on these helicopters.

Which aircraft AD 2018-03-01 applies to

MakesAgusta S.P.A.
ModelsAB139, AW139
Serial-conditional — narrows to serials 3615–3615, 3634–3634, 3667–3667, 3729–3729.
Part-conditional3G6210A00131.

Applies only to helicopters with an MRB P/N 3G6210A00131 with S/N 3615, 3634, 3667, or 3729 installed.

Whether AD 2018-03-01 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 complianceThe specific action taken (inspected, replaced, modified) and to what revision.
DateWhen the work was done.
Aircraft timeTotal time in service / tach at compliance — how recurring next-due is computed.
Signature & certificateThe A&P/IA who returned it to service, with certificate number.
Is AD 2018-03-01 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.