Is AD 2012-10-09 a recurring Airworthiness Directive?

No — AD 2012-10-09 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2012-10-09 apply to?

AD 2012-10-09 applies to Piper — models PA-31T, PA-31T1, PA-31. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2012-10-09

one-time

Official AD 2012-10-09 · FR doc 2012-12092 · 2012-05-25 · airframe

Airworthiness Directives; Piper Aircraft, Inc. Airplanes

What this AD requires

We are superseding an existing airworthiness directive (AD) for certain Piper Aircraft, Inc. (type certificate previously held by The New Piper Aircraft Inc.) Models PA-31T and PA-31T1 airplanes. That AD currently requires correcting a model identification error on the aircraft data plate. Since we issued that AD, we have become aware that some owner/operators of the affected airplanes modified the aircraft data plate in error because of confusion in the serial number applicability. Because of the confusion, the manufacturer has issued new service information to clarify affected airplane serial numbers. This new AD requires determining the airplane model based on the serial number and modifying the aircraft data plate to properly identify the airplane model. This new AD also requires doing a detailed search for all applicable airworthiness related documents that apply to any airplane that has an incorrectly marked data plate and take necessary corrective actions based on the search findings. We are issuing this AD to correct the unsafe condition on these products.

Which aircraft AD 2012-10-09 applies to

MakesPiper

ModelsPA-31T, PA-31T1, PA-31

Serial-conditional — narrows to serials 31T-7820001–31T-7820092, 31T-7804001–31T-7804011, 31T-7904001–31T-7904053, 31T-7904056–31T-7904057.

Applies only to the specific serial-numbered PA-31T and PA-31T1 airplanes listed, not all PA-31T/PA-31T1 units.

Whether AD 2012-10-09 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 2012-10-09 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.