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Airworthiness Directive 97-20129

recurring
AD 97-20129 · 1997-08-01 · airframe

Airworthiness Directives; Gulfstream Aerospace Corporation Model G-159 (G-I) Airplanes

What this AD requires

This amendment supersedes an existing airworthiness directive (AD), applicable to all Gulfstream Model G-159 (G-I) airplanes, that currently requires repetitive inspections to detect corrosion in the wing planks under the bottom wing center fairings, and repair, if necessary. This amendment requires the installation of a protective paint system which, when accomplished, will allow the inspections to be conducted at longer intervals. This amendment is prompted by the development of a modification that will improve the corrosion resistance of the subject area. The actions specified by this AD are intended to detect and prevent corrosion in the lower skins of the wing center section. If corrosion in this area remains unchecked, it could reduce the integrity of the wing-to-fuselage fitting, and consequently could lead to separation of the wing from the airplane.

Repetitive inspection. Re-inspect. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 97-20129 applies to

MakesGulfstream Aerospace Corporation
ModelsG-159

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

Whether AD 97-20129 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 97-20129 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.