Is AD 47-20-05 a recurring Airworthiness Directive?

No — AD 47-20-05 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 47-20-05 apply to?

AD 47-20-05 applies to Erco — models Ercoupe. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 47-20-05

one-time

AD 47-20-05 · 1947-01-01 · airframe

Airworthiness Directives; additional AN 470AD3-3 rivets, three through each side of each plate. (Erco's Ercoupe Service Department Bulletin No. 18 dated Jan

Which aircraft AD 47-20-05 applies to

MakesErco

ModelsErcoupe

Belly-skin patch plate to be secured with six additional AN470AD3-3 rivets, three through each side of each plate; also covered by Erco's Ercoupe Service Department Bulletin No. 18 dated January 9, 1947. Footer references Univair (current type-certificate holder).

Whether AD 47-20-05 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 47-20-05 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.