Is AD 98-3397 a recurring Airworthiness Directive?

No — AD 98-3397 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 98-3397 apply to?

AD 98-3397 applies to Fairchild — models SA226-AT, SA226-T. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 98-3397

one-time

AD 98-3397 · 1998-02-17 · airframe

Airworthiness Directives; Fairchild Aircraft Incorporated Models SA226-TC, SA226-T, SA226-T(B), and SA226-AT Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD) that applies to certain Fairchild Aircraft Incorporated (Fairchild) Models SA226-TC, SA226-T, SA226-T(B), and SA226-AT airplanes. This action requires inspecting the center flap hinge and wing trailing edge ribs at the flap actuator attach brackets for cracks and if no cracks are found, installing a doubler on the rib, or replacing a cracked rib with a new rib assembly that is reinforced with a doubler. This action is the result of high local stress concentration, which led to fatigue cracking of the wing trailing edge ribs. The actions specified by this AD are intended to prevent asymmetrical flap deflection, which could force the airplane into an uncommanded roll with possible loss of control of the airplane.

Which aircraft AD 98-3397 applies to

MakesFairchild

ModelsSA226-AT, SA226-T

certain

Whether AD 98-3397 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 98-3397 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.