Is AD 03-21871 a recurring Airworthiness Directive?

No — AD 03-21871 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 03-21871 apply to?

AD 03-21871 applies to Airbus — models A340. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 03-21871

one-time

AD 03-21871 · 2003-09-02 · airframe

Airworthiness Directives; Airbus Model A300 B2 and B4; A300 B4-600, A300 B4-600R, and A300 F4-600R (Collectively Called A300-600); A310; A319; A320; A321; A330; and A340 Series Airplanes; Equipped With PPG Aerospace Windshields

What this AD requires

This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A300 B2 and B4; A300 B4-600, A300 B4-600R, and A300 F4-600R (collectively called A300-600); A310; A319; A320; A321; A330; and A340 series airplanes; equipped with certain PPG Aerospace windshields. This AD requires replacement of certain windshields manufactured by PPG Aerospace with new windshields. This action is necessary to prevent failure of both structural plies of the windshield caused by overheating of the power lead wire, which could cause reduced structural integrity of the windshield assembly, and consequent loss of the windshield during flight. This action is intended to address the identified unsafe condition.

Which aircraft AD 03-21871 applies to

MakesAirbus

ModelsA340

Equipped With

Whether AD 03-21871 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 03-21871 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.