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Airworthiness Directive 2020-20911

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AD 2020-20911 · 2020-09-23 · 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) Model 505 helicopters. This AD requires inspecting each swashplate assembly bearing (bearing), and depending on the inspection results, removing the bearing from service. This AD was prompted by a report of a bearing that migrated out of the swashplate inner ring. The actions of this AD are intended to address an unsafe condition on these products.

Which aircraft AD 2020-20911 applies to

MakesBell Helicopter Textron Canada Limited
Models505
Serial-conditional — narrows to serials 65011–65211.
Part-conditional — 206-010-450-123.

Applies only to helicopters with S/N 65011 through 65211 inclusive, with swashplate assembly P/N 206-010-450-123 having an S/N listed in Table 1 of Bell Alert Service Bulletin 505-19-13, dated July 2, 2019 (table not machine-readable from the source text, so those part serial numbers could not be extracted), installed.

Whether AD 2020-20911 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 2020-20911 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.