Is AD 2018-09-15 a recurring Airworthiness Directive?

No — AD 2018-09-15 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2018-09-15 apply to?

AD 2018-09-15 applies to Bombardier — models BD-700-1A10, BD-700-1A11, BD-700. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2018-09-15

one-time

Official AD 2018-09-15 · FR doc 2018-09734 · 2018-05-11 · airframe

Airworthiness Directives; Bombardier, Inc., Airplanes

What this AD requires

We are superseding Airworthiness Directive (AD) 2016-25-18, which applied to certain Bombardier, Inc., Model BD-700-1A10 and BD- 700-1A11 airplanes. AD 2016-25-18 required an inspection for discrepancies of the attachment points of the links between the engine rear mount assemblies, and corrective actions if necessary. This AD requires an inspection of certain attachment points, corrective action if necessary, and replacement of certain bolts and nuts in the engine rear mount assemblies. This AD also adds airplanes to the applicability. This AD was prompted by the determination that replacement of certain nuts and bolts in the engine rear mount assemblies is necessary. We are issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2018-09-15 applies to

MakesBombardier

ModelsBD-700-1A10, BD-700-1A11, BD-700

Serial-conditional — narrows to serials 9002–9785, 9998–9998.

Whether AD 2018-09-15 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 2018-09-15 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.