Is AD 2016-05-04 a recurring Airworthiness Directive?

No — AD 2016-05-04 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 2016-05-04

Q: Which aircraft does AD 2016-05-04 apply to?

AD 2016-05-04 applies to Dowty Propellers — models R352/6-123-F/1, R352/6-123-F/2, R410/6-123-F/35, R352/6-123-F, R410/6-123-F. Serial/part conditions may narrow it to specific aircraft.

one-time

Official AD 2016-05-04 · FR doc 2016-05460 · 2016-03-11 · propeller

Airworthiness Directives; Dowty Propellers Constant Speed Propellers

What this AD requires

We are adopting a new airworthiness directive (AD) for certain Dowty Propellers R352/6-123-F/1, R352/6-123-F/2, and R410/6-123-F/35 model propellers. This AD was prompted by reports of dowel hole cracks in the face of the rear hub half. This AD requires installing dowel hole liners as necessary. We are issuing this AD to prevent loss of structural integrity of the propeller hub, which could result in damage to the propeller and damage to the airplane.

Which aircraft AD 2016-05-04 applies to

MakesDowty Propellers

ModelsR352/6-123-F/1, R352/6-123-F/2, R410/6-123-F/35, R352/6-123-F, R410/6-123-F

Part-conditional — 660715001, 660715004, 660715005, 660715201, 660715255, 660720217, 660720241, 660720252.

Applies to propellers with the listed part numbers with hub P/Ns 660715201, 660715255, 660720217, 660720241, 660720252, 660720260, or 660720288 installed.

Whether AD 2016-05-04 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 2016-05-04 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.