Is AD 2011-04-02 a recurring Airworthiness Directive?

No — AD 2011-04-02 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2011-04-02 apply to?

AD 2011-04-02 applies to Hamilton Sundstrand — models 247F. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2011-04-02

one-time

Official AD 2011-04-02 · FR doc 2011-2758 · 2011-02-09 · propeller

Airworthiness Directives; Hamilton Sundstrand Propellers Model 247F Propellers

What this AD requires

We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires removing affected propeller blades from service. This AD was prompted by reports of blades with corrosion pits in the tulip area of the blades. We are issuing this AD to prevent cracks from developing in the tulip area of the blade, which could result in separation of the blade and possible loss of airplane control.

Which aircraft AD 2011-04-02 applies to

MakesHamilton Sundstrand

Models247F

Serial-conditional — narrows to serials FR2018–FR2018, FR2103–FR2103, FR2108–FR2108, FR2109–FR2109, FR2111–FR2111, FR2123–FR2123, FR2183–FR2183, FR2187–FR2187, FR2262–FR2262, FR2276–FR2279, FR2398–FR2398, FR2449–FR2958, FR20010710–FR20010722, FR20010723RT–FR20020127RT.

Part-conditional — 817370-1.

Applies to model 247F series propellers with blades P/N 817370-1 at the listed serial numbers installed. These propellers are installed on, but not limited to, ATR-GIE Avions de Transport Regional ATR72-210 and ATR72-210E airplanes.

Whether AD 2011-04-02 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 2011-04-02 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.