Is AD 2003-04-01 a recurring Airworthiness Directive?

No — AD 2003-04-01 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2003-04-01 apply to?

AD 2003-04-01 applies to Hartzell. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2003-04-01

one-time

Official AD 2003-04-01 · FR doc 03-3309 · 2003-02-11 · propeller

Airworthiness Directives; Hartzell Propeller Inc., Model HD-E6C-3B/E13890K Propellers

What this AD requires

This amendment adopts a new airworthiness directive (AD), that is applicable to Hartzell Propeller Inc. HD-E6C-3B/E13890K propellers. This amendment requires the reduction of the original hub certified service (fatigue) life from unlimited hours to 37,400 flight hours. This amendment is prompted by a reevaluation by Hartzell Propeller Inc. of the D-5108-( ) original hub service life certification calculations. The actions specified by this AD are intended to prevent fatigue failure of D-5108-( ) hubs, which may result in loss of airplane control.

Which aircraft AD 2003-04-01 applies to

MakesHartzell

Part-conditional — D-5108.

Applies to Hartzell propeller hubs part-numbered D-5108-( ) (fatigue failure prevention); hubs must be removed from service before exceeding 37,400 flight hours.

Whether AD 2003-04-01 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 2003-04-01 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.