Is AD 2013-04-08 a recurring Airworthiness Directive?

No — AD 2013-04-08 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 2013-04-08

Q: Which aircraft does AD 2013-04-08 apply to?

AD 2013-04-08 applies to Diamond Aircraft Industries Gmbh — models HK 36 R, HK 36 TS, HK 36 TTS, HK 36. Serial/part conditions may narrow it to specific aircraft.

one-time

Official AD 2013-04-08 · FR doc 2013-10270 · 2013-05-06 · airframe

Airworthiness Directives; Diamond Aircraft Industries GmbH Powered Gliders

What this AD requires

We are revising an airworthiness directive (AD) for certain Diamond Aircraft Industries GmbH Models HK 36 R, HK 36 TS, and HK 36 TTS powered gliders. AD 2013-04-08 required replacement of each elevator bell crank assembly and elevator bell crank mount. This AD retains the actions of AD 2013-04-08 but decreases gliders in the Applicability by removing the Model H-36 from the Applicability. This AD was prompted by reports of installation of an unsuitable self- locking nut on the bell crank of the elevator push rod that can cause failure of the elevator, resulting in loss of control. We are issuing this AD to correct the unsafe condition on these products.

Which aircraft AD 2013-04-08 applies to

MakesDiamond Aircraft Industries Gmbh

ModelsHK 36 R, HK 36 TS, HK 36 TTS, HK 36

Serial-conditional — narrows to serials 36.300–36.414, 36.415–36.416, 36.393–36.393.

Powered gliders. Serial ranges by model: HK 36 R S/Ns 36.300-36.414; HK 36 TS S/Ns 36.415-36.416; HK 36 TTS S/N 36.393.

Whether AD 2013-04-08 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 2013-04-08 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.