Is AD 03-31270 a recurring Airworthiness Directive?

No — AD 03-31270 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 03-31270 apply to?

AD 03-31270 applies to Airbus — models A320, A321. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 03-31270

one-time

AD 03-31270 · 2003-12-23 · airframe

Airworthiness Directives; Airbus Model A319, A320, and A321 Series Airplanes Equipped With Certain Litton Air Data Inertial Reference Units

What this AD requires

This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A319, A320, and A321 series airplanes equipped with certain Litton air data inertial reference units (ADIRU). This AD requires modifying the shelf (floor panel) above ADIRU 3, and, for certain airplanes, modifying the polycarbonate guard that covers the ADIRUs, and the ladder located in the avionics compartment, as applicable. This action is necessary to prevent failure of ADIRU 3 during flight, which could result in loss of one source of critical attitude and airspeed data and reduce the ability of the flightcrew to control the airplane. This action is intended to address the identified unsafe condition.

Which aircraft AD 03-31270 applies to

MakesAirbus

ModelsA320, A321

Equipped With

Whether AD 03-31270 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 03-31270 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.