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Airworthiness Directive 2017-11-09

one-time
Official AD 2017-11-09 · FR doc 2017-10786 · 2017-05-30 · airframe

Airworthiness Directives; Learjet, Inc., Airplanes

What this AD requires

We are superseding Airworthiness Directive (AD) 2017-08-07 for certain Learjet, Inc., Model 60 airplanes. AD 2017-08-07 required a one-time inspection of the fuselage skin for corrosion, and related investigative and corrective actions if necessary. This new AD retains the actions of AD 2017-08-07 and removes certain airplanes from the applicability. This AD was prompted by a determination that only certain airplanes are affected by the unsafe condition. We are issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2017-11-09 applies to

MakesLearjet, Inc.
Models60
Serial-conditional — narrows to serials 60-002–60-430.

Applies only to airplanes with a dorsal-mounted oxygen bottle installed, or that have had the dorsal-mounted oxygen bottle removed but retained the oxygen line fairing installed on top of the fuselage.

Whether AD 2017-11-09 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 2017-11-09 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.