Is AD 2020-05244 a recurring Airworthiness Directive?

No — AD 2020-05244 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2020-05244 apply to?

AD 2020-05244 applies to Bell Helicopter Textron Canada Limited — models 429. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2020-05244

one-time

AD 2020-05244 · 2020-03-16 · airframe

Airworthiness Directives; Bell Helicopter Textron Canada Limited Helicopters

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Bell Helicopter Textron Canada Limited (Bell Canada) Model 429 helicopters. This AD requires inspecting a certain part-numbered curvic coupling for proper engagement and depending on the inspection results, inspecting for play, inspecting the curvic coupling teeth, inspecting the flapping bearing teeth, replacing parts, performing a rigging check, and reporting information. This AD was prompted by a report of disengaged teeth of a curvic coupling due to improper installation. The actions of this AD are intended to address an unsafe condition on these products.

Which aircraft AD 2020-05244 applies to

MakesBell Helicopter Textron Canada Limited

Models429

Serial-conditional — narrows to serials 57001–57343, 57346–57349, 57352–57356, 57362–57362.

Part-conditional — 429-012-120-101.

Applies only to helicopters within the listed serial number ranges with curvic coupling P/N 429-012-120-101 (tail rotor hub and blade assembly) installed.

Whether AD 2020-05244 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 2020-05244 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.