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Airworthiness Directive 2021-03478

recurring
AD 2021-03478 · 2021-03-08 · airframe

Airworthiness Directives; Textron Aviation, Inc. Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Textron Aviation Inc. (Textron) (type certificate previously held by Cessna Aircraft Company) Models 208 and 208B airplanes. This AD was prompted by reports of loose elevator torque tube attach fasteners. This AD requires repetitively inspecting the inboard and outboard elevator torque tube attachments for loose or incorrectly installed fasteners, replacing all fasteners if loose or incorrectly installed fasteners are found, and reporting the inspection results to the FAA. This AD also includes optional actions to terminate the repetitive inspections. The FAA is issuing this AD to address the unsafe condition on these products.

Repetitive inspection. Re-inspect every 200 hours. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2021-03478 applies to

MakesTextron Aviation Inc.
Models208, 208B
Serial-conditional — narrows to serials 20800564–20800594, 20800603–20800605, 208B5141–208B5285, 208B5287–208B5305, 208B5307–208B5312, 208B5314–208B5314, 208B5316–208B5344, 208B5346–208B5350, 208B5353–208B5353, 208B5354–208B5354, 208B5356–208B5359, 208B5362–208B5366, 208B5401–208B5401, 208B5403–208B5403, 208B5404–208B5404, 208B5408–208B5408.

Type certificate previously held by Cessna Aircraft Company.

Whether AD 2021-03478 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 2021-03478 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.