Is AD 03-10726 a recurring Airworthiness Directive?

No — AD 03-10726 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 03-10726 apply to?

AD 03-10726 applies to Raytheon — models 390. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 03-10726

one-time

AD 03-10726 · 2003-05-05 · airframe

Airworthiness Directives; Raytheon Aircraft Company Model 390 Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD) that applies to certain Raytheon Aircraft Company (Raytheon) Model 390 airplanes. This AD requires you to modify the aft power distribution box and the aft ram air duct. This AD is the result of reports of two incidents involving temporary loss of all attitude display information. The actions specified by this AD are intended to prevent moisture from entering the aft power distribution box through the aft ram air duct, which could result in electrical power failure. Such failure could lead to loss of all attitude display information during flight.

Which aircraft AD 03-10726 applies to

MakesRaytheon

Models390

certain

Whether AD 03-10726 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 03-10726 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.