Is AD 2016-05-01 a recurring Airworthiness Directive?

Yes — AD 2016-05-01 requires a repetitive inspection every 100 hours. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2016-05-01 apply to?

AD 2016-05-01 applies to Piper Aircraft, Inc. — models PA-31-300, PA-31-325, PA-31-350, PA-31. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2016-05-01

recurring

Official AD 2016-05-01 · FR doc 2016-04417 · 2016-03-11 · airframe

Airworthiness Directives; Piper Aircraft, Inc. Airplanes

What this AD requires

We are superseding Airworthiness Directive (AD) 96-12-12, which applies to certain Piper Aircraft, Inc. Models PA-31, PA-31-300, PA-31-325, and PA-31-350 airplanes. AD 96-12-12 requires a one-time inspection of the bulkhead assembly at fuselage station (FS) 317.75 for cracks and the installation of one of two reinforcement kits determined by whether cracks were found during the inspection. This new AD requires repetitive inspections of the bulkhead assembly at FS 317.75 for cracks, repair of cracks as necessary, and the installation of a reinforcement modification. This AD was prompted by cracks found in the FS 317.75 upper bulkhead. We are issuing this AD to correct the unsafe condition on these products.

Repetitive inspection. Re-inspect every 100 hours. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2016-05-01 applies to

MakesPiper Aircraft, Inc.

ModelsPA-31-300, PA-31-325, PA-31-350, PA-31

Serial-conditional — narrows to serials 31-2–31-900, 31-7300901–31-8312019, 31-5001–31-5004, 31-7305005–31-8553002.

Model PA-31 may also be identified as PA-31-310, although PA-31-310 is not a model recognized by the FAA on the type certificate data sheet.

Whether AD 2016-05-01 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 2016-05-01 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.