Is AD 2004-15-18 a recurring Airworthiness Directive?

No — AD 2004-15-18 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2004-15-18 apply to?

AD 2004-15-18 applies to Cessna Aircraft Company — models 172R, 172S, 182S, 182T, T182T, 206H, T206H, 172. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2004-15-18

one-time

Official AD 2004-15-18 · FR doc 04-17217 · 2004-07-30 · airframe

Airworthiness Directives; Cessna Aircraft Company Models 172R, 172S, 182S, 182T, T182T, 206H, and T206H Airplanes

What this AD requires

The FAA supersedes Airworthiness Directive (AD) 2003-24-13, which applies to certain Cessna Aircraft Company (Cessna) Models 172R, 172S, 182S, 182T, T182T, 206H, and T206H airplanes that are equipped with a certain Honeywell KAP 140 autopilot computer system installed on the center instrument control panel near the throttle. AD 2003-24-13 currently requires you to install an update to the operating software of certain KAP 140 autopilot computer system, change the unit's part number, and change the software modification identification tab. This AD is the result of the FAA inadvertently omitting four affected Honeywell KAP 140 autopilot computer system part numbers and an affected airplane serial number from the applicability section of AD 2003-24-13. This AD retains the actions required in AD 2003-24-13, corrects the applicability section, and incorporates a revised installation bulletin issued by Honeywell.

Which aircraft AD 2004-15-18 applies to

MakesCessna Aircraft Company

Models172R, 172S, 182S, 182T, T182T, 206H, T206H, 172, 182, 206

Whether AD 2004-15-18 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 2004-15-18 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.