Is AD 2016-08-18 a recurring Airworthiness Directive?

No — AD 2016-08-18 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2016-08-18 apply to?

AD 2016-08-18 applies to Piper Aircraft, Inc. — models PA-31-350, PA-31. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2016-08-18

one-time

Official AD 2016-08-18 · FR doc 2016-09238 · 2016-05-02 · airframe

Airworthiness Directives; Piper Aircraft, Inc. Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for certain Piper Aircraft, Inc. Model PA-31-350 airplanes. This AD was prompted by a report of an engine fire caused by a leak in the fuel pump inlet hose. This AD requires inspecting the fuel hose assembly and the turbocharger support assembly for proper clearance between them, inspecting each assembly for any sign of damage, and making any necessary repairs or replacements. We are issuing this AD to correct the unsafe condition on these products.

Which aircraft AD 2016-08-18 applies to

MakesPiper Aircraft, Inc.

ModelsPA-31-350, PA-31

Serial-conditional — narrows to serials 31-5001–31-5004, 31-7305005–31-8452024, 31-8253001–31-8553002.

Part-conditional — Piper 39995-034, Lycoming LW-12877-6S142.

Applies only to PA-31-350 airplanes equipped with TIO-540-J2B, LTIO-540-J2B, TIO540-J2BD, or LTIO-540-J2BD engines and the listed fuel pump hose assemblies (Piper 39995-034 inlet fuel hose or Lycoming LW-12877-6S142 exit fuel hose).

Whether AD 2016-08-18 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 2016-08-18 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.