Is AD 2019-03406 a recurring Airworthiness Directive?

No — AD 2019-03406 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2019-03406 apply to?

AD 2019-03406 applies to Gulfstream Aerospace Lp — models G150. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2019-03406

one-time

AD 2019-03406 · 2019-03-04 · airframe

Airworthiness Directives; Gulfstream Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries, Ltd.) Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for certain Gulfstream Aerospace LP Model Gulfstream G150 airplanes. This AD was prompted by reports of corrosion in the solder joints of the upper and lower front relay box connectors to the printed circuit board. This AD requires replacement of the existing relay boxes with modified boxes. We are issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2019-03406 applies to

MakesGulfstream Aerospace Lp

ModelsG150

Serial-conditional — narrows to serials 201–326.

Type certificate previously held by Israel Aircraft Industries, Ltd.

Whether AD 2019-03406 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 2019-03406 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.