Is AD 2019-08-11 a recurring Airworthiness Directive?

No — AD 2019-08-11 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2019-08-11 apply to?

AD 2019-08-11 applies to Bombardier — models CL-600-2B19, CL-600. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2019-08-11

one-time

Official AD 2019-08-11 · FR doc 2019-11830 · 2019-06-06 · airframe

Airworthiness Directives; Bombardier, Inc., Airplanes

What this AD requires

We are superseding Airworthiness Directive (AD) 2008-24-14, which applied to all Bombardier, Inc., Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. AD 2008-24-14 required revising the instructions for continued airworthiness to incorporate certain airworthiness limitations for the main landing gear (MLG) trunnion fitting assembly. This AD requires revising the maintenance or inspection program, as applicable, to incorporate certain airworthiness limitations (AWLs). This AD also requires reworking the trunnion fitting in order to meet new structural safe-life limits. This AD was prompted by reports of cracks on the MLG trunnion fitting during fatigue testing; the introduction of new AWL tasks with revised inspection, modification, and safe-life requirements; and a determination that the trunnion fitting lower flange and both forward and aft bore holes are also subject to fatigue cracking. We are issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2019-08-11 applies to

MakesBombardier

ModelsCL-600-2B19, CL-600

Serial-conditional — narrows to serials 7002–?.

Model CL-600-2B19, Regional Jet Series 100 & 440 (CRJ100/CRJ440); serial numbers 7002 and subsequent.

Whether AD 2019-08-11 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 2019-08-11 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.