Is AD 2004-18-01 a recurring Airworthiness Directive?

Yes — AD 2004-18-01 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2004-18-01 apply to?

AD 2004-18-01 applies to Hoffmann Propeller Gmbh & Co Kg — models HO-V343, HO-V343K. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2004-18-01

recurring

Official AD 2004-18-01 · FR doc 04-19829 · 2004-09-02 · propeller

Airworthiness Directives; Hoffmann Propeller GmbH & Co KG Models HO-V343 and HO-V343K Propellers

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for Hoffmann Propeller GmbH & Co KG (Hoffmann Propeller) models HO-V343 and HO-V343K propellers. This AD requires initial and repetitive visual inspections of propeller blades for blade shake and blade nut preload. This AD also requires initial and repetitive eddy current inspections of blade hubs for damage and cracks. This AD results from a report of a blade separating from either a model HO-V343 or HO-V343K propeller. We are issuing this AD to prevent propeller hub failure and blade separation due to an unknown root cause, leading to damage and possible loss of control of the airplane.

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

Which aircraft AD 2004-18-01 applies to

MakesHoffmann Propeller Gmbh & Co Kg

ModelsHO-V343, HO-V343K

Installed on, but not limited to, general aviation airplanes, possibly under an FAA-approved Supplemental Type Certificate.

Whether AD 2004-18-01 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 2004-18-01 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.