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Airworthiness Directive 2018-20-11

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Official AD 2018-20-11 · FR doc 2018-25002 · 2018-11-19 · airframe

Airworthiness Directives; Bombardier, Inc., Airplanes

What this AD requires

The FAA is correcting an airworthiness directive (AD) that published in the Federal Register. That AD applies to certain Bombardier, Inc., Model DHC-8-300 series airplanes. As published, a service information citation is incorrect. This document corrects the error. In all other respects, the original document remains the same.

Which aircraft AD 2018-20-11 applies to

MakesBombardier
ModelsDHC-8-301, DHC-8-311, DHC-8-315, DHC-8
Serial-conditional — narrows to serials 100–672.

Whether AD 2018-20-11 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 2018-20-11 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.