Is AD 2004-04-06 a recurring Airworthiness Directive?

No — AD 2004-04-06 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 2004-04-06

Q: Which aircraft does AD 2004-04-06 apply to?

AD 2004-04-06 applies to General Electric — models CT58-100-2, CT58-140-1, CT58-140-2, T58-GE-1, T58-GE-3, T58-GE-5, T58-GE-8E, T58-GE-8F. Serial/part conditions may narrow it to specific aircraft.

one-time

Official AD 2004-04-06 · FR doc 04-3680 · 2004-02-23 · turboshaft engine

Airworthiness Directives; General Electric Company CT58 Series and T58 Series Turboshaft Engines

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain General Electric Company (GE) CT58-100-2, CT58-140-1, -140-2, and T58-GE-1, -3, -5, -8E, -8F, -10, -100, and -402 turboshaft engines. This AD requires the removal from service of certain fuel flow divider assemblies. This AD results from a report that a certain population of flow divider end caps could crack and cause large volumes of fuel leakage. We are issuing this AD to prevent fuel leakage from the fuel flow divider assembly, which could cause an engine fire, leading to an in-flight engine shutdown and forced landing.

Which aircraft AD 2004-04-06 applies to

MakesGeneral Electric

ModelsCT58-100-2, CT58-140-1, CT58-140-2, T58-GE-1, T58-GE-3, T58-GE-5, T58-GE-8E, T58-GE-8F, T58-GE-10, T58-GE-100, T58-GE-402, CT58, T58

Part-conditional — 4050T82G02, 4067T04G02, 5040T77G02, 5040T87G02.

Applies only to engines with fuel flow divider assemblies P/N 4050T82G02 or 4067T04G02, having temperature control assemblies P/N 5040T77G02 or 5040T87G02, with serial numbers listed in section 1.A.(3) of GE ASB No. CT58 S/B 73-A0081, Revision 2, dated August 7, 2003, installed.

Whether AD 2004-04-06 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 2004-04-06 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.