Is AD 2021-22-04 a recurring Airworthiness Directive?

No — AD 2021-22-04 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2021-22-04 apply to?

AD 2021-22-04 applies to Airbus — models A318-111, A318-112, A318-121, A318-122, A319-111, A319-112, A319-113, A319-114. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2021-22-04

one-time

Official AD 2021-22-04 · FR doc 2021-25201 · 2021-11-19 · airframe

Airworthiness Directives; Airbus SAS Airplanes

What this AD requires

The FAA is superseding Airworthiness Directive (AD) 2019-21- 10, which applied to all Airbus SAS Model A321-111, -112, -131, -211, - 212, -213, -231, and -232 airplanes. AD 2019-21-10 required a one-time eddy current conductivity measurement of certain structural parts of the outer flaps to determine if the incorrect alloy was used, and replacement if necessary. This AD continues to require a one-time eddy current conductivity measurement of certain structural parts of the outer flaps to determine if the incorrect alloy was used, and replacement if necessary; and also requires a new one-time eddy current conductivity measurement of certain other structural parts of the outer flaps to determine if the parts were properly heat treated, and replacement if necessary; and includes additional affected airplanes; as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD was prompted by a quality control review, which determined that the wrong aluminum alloy was used to manufacture several structural parts and by the issuance of an updated list of suspected parts, including those that may have been improperly heat treated. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2021-22-04 applies to

MakesAirbus

ModelsA318-111, A318-112, A318-121, A318-122, A319-111, A319-112, A319-113, A319-114, A319-115, A319-131, A319-132, A319-133, A320-211, A320-212, A320-214, A320-216, A320-231, A320-232, A320-233, A321-111, A321-112, A321-131, A321-211, A321-212, A321-213, A321-231, A321-232, A318, A319, A320, A321

Whether AD 2021-22-04 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 2021-22-04 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.