Is AD 2004-26-04 a recurring Airworthiness Directive?

No — AD 2004-26-04 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2004-26-04 apply to?

AD 2004-26-04 applies to Pratt & Whitney — models JT8D-209, JT8D-217, JT8D-217A, JT8D-217C, JT8D-219, JT8D. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2004-26-04

one-time

Official AD 2004-26-04 · FR doc 05-84 · 2005-01-05 · turbine engine

Airworthiness Directives; Pratt & Whitney JT8D-200 Series Turbofan Engines

What this AD requires

The FAA is superseding existing airworthiness directive (AD) 99-22-14 for Pratt & Whitney (PW) JT8D-200 series turbofan engines. That AD currently requires removing low pressure turbine (LPT)-to- exhaust case bolts and nuts and replacement with improved LPT-to- exhaust case bolts and nuts on JT8D-209, -217, -217A, -217C, and -219 engines. That AD also requires installation of improved high pressure turbine (HPT) containment hardware on JT8D-217C, and -219 engines. This AD requires installation of improved HPT containment hardware on JT8D- 209, -217, -217A, -217C, and -219 engines. This AD results from four reports of uncontained HPT failures of JT8D-200 series engines, since AD 99-22-14 was issued. We are issuing this AD to prevent uncontained HPT events resulting from HPT shaft fractures.

Which aircraft AD 2004-26-04 applies to

MakesPratt & Whitney

ModelsJT8D-209, JT8D-217, JT8D-217A, JT8D-217C, JT8D-219, JT8D

These engines are installed on, but not limited to, Boeing 727 series and McDonnell Douglas MD-80 series airplanes.

Whether AD 2004-26-04 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 2004-26-04 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.