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Airworthiness Directive 2008-16-19

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Official AD 2008-16-19 · FR doc E8-18236 · 2008-08-13 · airframe

Airworthiness Directives; Pilatus Aircraft Ltd. Model PC-6 Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for the products listed above. 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:

Which aircraft AD 2008-16-19 applies to

MakesFairchild Republic CompanyFairchild Heli PorterFairchild-Hiller Corporation
ModelsPC-6-H1, PC-6-H2, PC-6/350, PC-6/350-H1, PC-6/350-H2, PC-6/A, PC-6/A-H1, PC-6/A-H2, PC-6/B-H2, PC-6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, PC-6/C-H2, PC-6/C1-H2, PC-6
Serial-conditional — narrows to serials 101–949, 2001–2092.
Part-conditional — 938.07.65.105.

Loose self-locking stop nuts P/N 938.07.65.105 found in tail landing gear fastener assemblies; requires replacement of these nuts in Tail Landing Gear, Parachute Cable, Water Tank, Cable Tensioner, Fuel Filter, Hydraulic Pump, and Engine Mounts assemblies per Pilatus PC-6 SB No. 53-002 Rev 2. Serial numbers given are manufacturer serial numbers (MSN).

Whether AD 2008-16-19 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 2008-16-19 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.