Is AD 2011-22566 a recurring Airworthiness Directive?

Yes — AD 2011-22566 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Airworthiness Directive 2011-22566

Q: Which aircraft does AD 2011-22566 apply to?

AD 2011-22566 applies to Dowty Propellers — models R321/4-82-F/8, R324/4-82-F/9, R333/4-82-F/12, R334/4-82-F/13, R321/4-82-F, R324/4-82-F, R333/4-82-F, R334/4-82-F. Serial/part conditions may narrow it to specific aircraft.

recurring

AD 2011-22566 · 2011-09-06 · propeller

Airworthiness Directives; Dowty Propellers Type R321/4-82-F/8, R324/4-82-F/9, R333/4-82-F/12, and R334/4-82-F/13 Propeller Assemblies

What this AD requires

We are revising an existing airworthiness directive (AD) for the products listed above. That AD currently requires initial and repetitive ultrasonic inspections of propeller hubs, part number (P/N) 660709201. This new AD requires introducing a new hub assembly P/N as an optional terminating action to the repetitive hub inspections. This AD was prompted by the need to introduce an optional terminating action for the repetitive inspections. We are issuing this AD to prevent propeller hub failure due to cracks in the hub, which could result in 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 2011-22566 applies to

MakesDowty Propellers

ModelsR321/4-82-F/8, R324/4-82-F/9, R333/4-82-F/12, R334/4-82-F/13, R321/4-82-F, R324/4-82-F, R333/4-82-F, R334/4-82-F

Part-conditional — 660709201.

Applies only to propeller assemblies with propeller hub P/N 660709201 installed.

Whether AD 2011-22566 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 2011-22566 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.