Is AD 04-126 a recurring Airworthiness Directive?

No — AD 04-126 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 04-126 apply to?

AD 04-126 applies to Dassault — models 900EX. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 04-126

one-time

AD 04-126 · 2004-01-09 · airframe

Airworthiness Directives; Dassault Model Falcon 2000 and 900EX, and Dassault Model Mystere-Falcon 900 Series Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD), applicable to certain Dassault Model Falcon 2000 and 900EX, and Dassault Model Mystere-Falcon 900 series airplanes. This AD requires measuring the paint thickness on the upper and lower surfaces of the left and right sides of the horizontal stabilizer, performing corrective actions if necessary, and installing maintenance caution placards on the upper surface of the left and right sides of the horizontal stabilizer. This action is necessary to prevent structural damage to the horizontal stabilizer after a direct lightning strike, which could result in reduced controllability of the airplane. This action is intended to address the identified unsafe condition.

Which aircraft AD 04-126 applies to

MakesDassault

Models900EX

certain

Whether AD 04-126 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 04-126 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.