Is AD 04-2574 a recurring Airworthiness Directive?

No — AD 04-2574 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 04-2574 apply to?

AD 04-2574 applies to Aerospatiale — models ATR72. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 04-2574

one-time

AD 04-2574 · 2004-02-11 · airframe

Airworthiness Directives; Aerospatiale Model ATR42 and ATR72 Series Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD), applicable to certain Aerospatiale Model ATR42 and ATR72 series airplanes, that requires replacement of the swinging lever spacers in the left and right leg assemblies of the main landing gear with new, improved spacers. This action is necessary to prevent propagation of fatigue cracking, which could result in failure of the spacer base and could affect the symmetrical functioning of the braking system. Asymmetrical braking could result in the airplane overrunning the runway during takeoff or landing. This action is intended to address the identified unsafe condition.

Which aircraft AD 04-2574 applies to

MakesAerospatiale

ModelsATR72

certain

Whether AD 04-2574 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 04-2574 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.