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Airworthiness Directive 2018-21-06

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Official AD 2018-21-06 · FR doc 2018-24007 · 2018-11-05 · airframe

Airworthiness Directives; SOCATA Airplanes

What this AD requires

We are superseding Airworthiness Directive (AD) 98-16-03 for SOCATA Model TB 9 and Model TB 10 airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as fatigue cracking of the wing front attachments on the wing and fuselage sides. We are issuing this AD to require actions to address the unsafe condition on these products.

Which aircraft AD 2018-21-06 applies to

MakesSocata
ModelsTB 9, TB 10, TB 200
Serial-conditional — narrows to serials 001–803, 805–806, 809–815, 820–822, 804–804, 807–808, 816–819, 823–2229.

Group 1: Model TB 9 (all manufacturer serial numbers) and Model TB 10 MSN 001-803, 805-806, 809-815, 820-822. Group 2: Model TB 10 MSN 804, 807-808, 816-819, 823-2229 and Model TB 200 (all MSNs). serial_ranges lists only the explicit TB 10 MSN ranges; TB 9 and TB 200 apply to all serial numbers with no bounding range given.

Whether AD 2018-21-06 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 2018-21-06 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.