Is AD 04-4684 a recurring Airworthiness Directive?

No — AD 04-4684 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 04-4684 apply to?

AD 04-4684 applies to Boeing — models 720. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 04-4684

one-time

AD 04-4684 · 2004-03-10 · airframe

Airworthiness Directives; Boeing Model 707 and 720 Series Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD), applicable to all Boeing Model 707 and 720 series airplanes, that requires inspection of the bolt forward of the wing front spar upper chord on the overwing support fittings of the inboard and outboard nacelle struts to verify that BACB30US type bolts are installed. If any other type of bolt is found, this amendment requires replacement with a new BACB30US type bolt. This action is necessary to prevent separation of the engine from the airplane due to stress corrosion cracking and consequent fracturing of the bolts. This action is intended to address the identified unsafe condition.

Which aircraft AD 04-4684 applies to

MakesBoeing

Models720

applicability derived from the AD summary — confirm the model/serial from the records

Whether AD 04-4684 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 04-4684 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.