Is AD 2017-04-01 a recurring Airworthiness Directive?

No — AD 2017-04-01 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2017-04-01 apply to?

AD 2017-04-01 applies to Gulfstream Aerospace Corporation — models GVI. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2017-04-01

one-time

Official AD 2017-04-01 · FR doc 2017-03026 · 2017-02-21 · airframe

Airworthiness Directives; Gulfstream Aerospace Corporation Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for certain Gulfstream Aerospace Corporation Model GVI airplanes. This AD was prompted by a report indicating that there are design deficiencies in the software used for monitoring the disconnect for the flight control computer (FCC)-hosted flight controls actuation main ram linear variable differential transducer (LVDT). This AD requires an update of the FCC software. We are issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2017-04-01 applies to

MakesGulfstream Aerospace Corporation

ModelsGVI

Serial-conditional — narrows to serials 6001–6164.

Model GVI airplanes are also referred to by the marketing designations G650 and G650ER.

Whether AD 2017-04-01 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 2017-04-01 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.