Is AD 2016-08-16 a recurring Airworthiness Directive?

No — AD 2016-08-16 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2016-08-16 apply to?

AD 2016-08-16 applies to Turbomeca — models Arriel 2E, Arriel. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2016-08-16

one-time

Official AD 2016-08-16 · FR doc 2016-09121 · 2016-04-20 · turboshaft engine

Airworthiness Directives; Turbomeca S.A. Turboshaft Engines

What this AD requires

We are adopting a new airworthiness directive (AD) for all Turbomeca S.A. Arriel 2E turboshaft engines. This AD requires removing the pre-TU 193 adjusted high-pressure/low-pressure pump and metering valve assembly and replacing it with a part that is eligible for installation. This AD also requires replacing the constant delta- pressure (delta-P) diaphragm of the fuel metering valve. This AD was prompted by reports of fuel flow non-conformities found during acceptance tests of Arriel 2E hydro-mechanical metering units (HMUs). We are issuing this AD to prevent failure of the delta-P diaphragm, which could result in an uncommanded in-flight shutdown and damage to the helicopter.

Which aircraft AD 2016-08-16 applies to

MakesTurbomeca

ModelsArriel 2E, Arriel

Applies only to engines with a pre-TU 193 adjusted high-pressure/low-pressure (HP/LP) pump and metering valve assembly installed.

Whether AD 2016-08-16 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 2016-08-16 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.