Is AD 75-16-18 a recurring Airworthiness Directive?

No — AD 75-16-18 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 75-16-18 apply to?

AD 75-16-18 applies to Dowty Propellers — models R.209/4-40-4.5, R.245/4-40-4.5, R.259/4-40-4.5, R.209, R.245, R.259. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 75-16-18

one-time

AD 75-16-18 · 1975-01-01 · propeller

Airworthiness Directives; repaired in accordance with paragraph (b)(1) of this AD. This amendment becomes effective July 29, 1975. FOOTER: Dowty Propellers

Which aircraft AD 75-16-18 applies to

MakesDowty Propellers

ModelsR.209/4-40-4.5, R.245/4-40-4.5, R.259/4-40-4.5, R.209, R.245, R.259

applicability read from the AD teaser — confirm exact model/serial from the records

Whether AD 75-16-18 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 75-16-18 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 →

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.