Is AD 98-16493 a recurring Airworthiness Directive?

No — AD 98-16493 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 98-16493 apply to?

AD 98-16493 applies to Gulfstream Aerospace Corporation. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 98-16493

one-time

AD 98-16493 · 1998-06-24 · turboprop engine

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

What this AD requires

This amendment adopts a new airworthiness directive (AD), applicable to all Gulfstream Aerospace Corporation Model G-159 (G-I) airplanes, that requires revising the Airplane Flight Manual (AFM) to prohibit positioning the power levers below the flight idle stop. This amendment is prompted by incidents and accidents involving airplanes equipped with turboprop engines in which the ground propeller beta range was used improperly during flight. The actions specified by this AD are intended to prevent loss of airplane controllability or engine overspeed with consequent loss of engine power caused by the power levers being positioned below the flight idle stop while the airplane is in flight.

Which aircraft AD 98-16493 applies to

MakesGulfstream Aerospace Corporation

equipped with

Whether AD 98-16493 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 98-16493 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.