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Airworthiness Directive 2019-20-08

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Official AD 2019-20-08 · FR doc 2019-24324 · 2019-11-08 · airframe

Airworthiness Directives; Gulfstream Aerospace Corporation Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Gulfstream Aerospace Corporation (Gulfstream) Model G-IV and Model GIV-X airplanes. This AD was prompted by a revision to the airworthiness limitations section (ALS) of the aircraft maintenance manual (AMM) based on fatigue and damage tolerance testing and updated analysis. This AD requires revising the maintenance or inspection program to incorporate updated inspection requirements and life limits that address fatigue cracking of principal structural elements. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2019-20-08 applies to

MakesGulfstream Aerospace
ModelsG-IV, GIV-X
Serial-conditional — narrows to serials 1000–1535, 4001–4363.

G-IV serial numbers 1000 through 1535; GIV-X serial numbers 4001 through 4363. Model G-IV airplanes are also referred to by the marketing designations G300 and G400; Model GIV-X airplanes are also referred to by the marketing designations G350 and G450.

Whether AD 2019-20-08 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 2019-20-08 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.