Is AD 98-13821 a recurring Airworthiness Directive?

No — AD 98-13821 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 98-13821 apply to?

AD 98-13821 applies to Airbus — models A300-600. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 98-13821

one-time

AD 98-13821 · 1998-05-28 · airframe

Airworthiness Directives; Airbus Model A310 and A300-600 Series Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A310 and A300-600 series airplanes, that requires a visual inspection to detect cracks in the aft mount beam assembly of the engine; and replacement of any cracked beam with a new beam or beam assembly. This amendment also requires a fluorescent penetrant inspection to detect cracks in the aft mount beam assembly of the engine, and various follow-on actions. This amendment is prompted by reports indicating that, apparently due to manufacturing defects during the forging process, cracking was found in two engine aft mount beams. The actions specified by this AD are intended to detect and correct such cracking, which could result in reduced structural integrity of the aft mount beam assembly of the engine.

Which aircraft AD 98-13821 applies to

MakesAirbus

ModelsA300-600

certain

Whether AD 98-13821 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 98-13821 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.