Is AD 04-11959 a recurring Airworthiness Directive?

No — AD 04-11959 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 04-11959 apply to?

AD 04-11959 applies to Raytheon — models 800XP. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 04-11959

one-time

AD 04-11959 · 2004-06-02 · airframe

Airworthiness Directives; Raytheon Model BAe.125 Series 800A (Including C-29A and U-125 Variant) and 800B Airplanes; and Model Hawker 800 (Including U-125A Variant), and 800XP Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD), applicable to certain Raytheon Model BAe.125 series 800A (including C- 29A and U-125 variant) and 800B airplanes; and Model Hawker 800 (including U-125A variant) and 800XP airplanes; that requires a functional test of the engine fire extinguishing wiring for the appropriate installation; verification of the correct wiring connector installation; correction of wiring if necessary; and installation of new marker bands. This action is necessary to prevent incorrect wiring of the engine fire extinguisher bottles, which could result in one or both fire extinguisher bottles being discharged into the wrong engine nacelle. This action is intended to address the identified unsafe condition.

Which aircraft AD 04-11959 applies to

MakesRaytheon

Models800XP

certain

Whether AD 04-11959 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 04-11959 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.