Is AD 2014-16-01 a recurring Airworthiness Directive?

No — AD 2014-16-01 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2014-16-01 apply to?

AD 2014-16-01 applies to Md Helicopters — models MD900. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2014-16-01

one-time

Official AD 2014-16-01 · FR doc 2014-18163 · 2014-08-05 · airframe

Airworthiness Directives; MD Helicopters, Inc., Helicopters

What this AD requires

We are adopting a new airworthiness directive (AD) for MD Helicopters, Inc. (MDHI), Model MD900 helicopters. This AD requires an eddy current inspection of the main rotor upper hub assembly (upper hub) for a crack and replacing the upper hub with an airworthy upper hub before further flight if there is a crack. This AD is prompted by a report of cracks on an upper hub at the blade attach holes. The actions specified by this AD are intended to detect a crack in the upper hub to prevent failure of the upper hub and subsequent loss of control of the helicopter.

Which aircraft AD 2014-16-01 applies to

MakesMd Helicopters

ModelsMD900

Serial-conditional — narrows to serials 900-00008–900-00140.

Part-conditional — 900R2101006-105, 900R2101006-107, 900R2101006-109, 900R2101006-111.

Applies only to helicopters with a main rotor upper hub assembly of a listed part number installed.

Whether AD 2014-16-01 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 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 2014-16-01 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.