Is AD 2010-14-20 a recurring Airworthiness Directive?

No — AD 2010-14-20 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2010-14-20 apply to?

AD 2010-14-20 applies to Mccauley Propeller Systems — models 4HFR34C653/L106FA. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2010-14-20

one-time

Official AD 2010-14-20 · FR doc 2010-16615 · 2010-07-13 · propeller

Airworthiness Directives; McCauley Propeller Systems Model 4HFR34C653/L106FA Propellers

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for McCauley Propeller Systems model 4HFR34C653/L106FA propellers. This AD requires a onetime fluorescent penetrant inspection (FPI) and eddy current inspection (ECI) of the propeller hub for cracks. This AD results from reports of 10 hubs found cracked during propeller overhaul. We are issuing this AD to prevent failure of the propeller hub, which could cause blade separation, damage to the airplane, and loss of control of the airplane.

Which aircraft AD 2010-14-20 applies to

MakesMccauley Propeller Systems

Models4HFR34C653/L106FA

Whether AD 2010-14-20 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 2010-14-20 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.