Is AD 2016-01-19 a recurring Airworthiness Directive?

No — AD 2016-01-19 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2016-01-19 apply to?

AD 2016-01-19 applies to Mdhi — models 500N, 600N. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2016-01-19

one-time

Official AD 2016-01-19 · FR doc 2016-00945 · 2016-01-21 · airframe

Airworthiness Directives; MD Helicopters Inc.

What this AD requires

We are adopting a new airworthiness directive (AD) for MD Helicopters Inc. (MDHI) Model 500N and 600N helicopters with certain rotating cone assemblies installed. This AD requires establishing a life limit of 10,000 hours time-in-service (TIS) on these rotating cone assemblies. This AD was prompted by the determination that MDHI created rotating cone assemblies with new dash numbers but incorrectly failed to identify them as life-limited parts. The actions are intended to prevent operation of rotating cone assemblies past their life limits, failure of the rotating cone assemblies, loss of directional control, and subsequent loss of control of the helicopter.

Which aircraft AD 2016-01-19 applies to

MakesMdhi

Models500N, 600N

Part-conditional — 500N3740-81, 500N3740-71.

Applies only if a rotating cone assembly is installed: P/N 500N3740-81 on Model 500N, or P/N 500N3740-71 on Model 600N.

Whether AD 2016-01-19 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 2016-01-19 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.