Is AD 97-12246 a recurring Airworthiness Directive?

No — AD 97-12246 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 97-12246 apply to?

AD 97-12246 applies to Aerospace Technologies Of Australia, Nomad N22 And N24 — models N24. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 97-12246

one-time

AD 97-12246 · 1997-05-13 · airframe

Airworthiness Directives; Aerospace Technologies of Australia, Nomad N22 and N24 Series Airplanes

What this AD requires

This amendment supersedes AirworthinessDirective AD 85-21-06 which applies to all AerospaceTechnologies of Australia (ASTA) Nomad N22 and N24 series airplanes and currently requires replacing the attachment fittings of the upper fin rear spar and the fin/horizontal stabilizer. This action requires removing the upper fin to stub fin forward attachment bolts, inspecting the attachment fittings for cracks, and, if no cracks are found, replacing the attachment bolts with bolts of improved design until the life limit of the attachment fittings is reached, at which time the attachment fittings would be replaced with improved attachment fittings. If cracks are found, this AD requires replacing the attachment bolts and attachment fittings. Cracks found in the underhead radius and at the base of the thread of the bolt prompted this action. The actions specified by thisAD are intended to prevent cracking in the upper fin and horizontal stabilizer attachment fittings, which if not corrected, could result in loss of control of the airplane.

Which aircraft AD 97-12246 applies to

MakesAerospace Technologies Of Australia, Nomad N22 And N24

ModelsN24

applicability derived from the AD summary — confirm the model/serial from the records

Whether AD 97-12246 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 97-12246 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.