Is AD 99-22-14 a recurring Airworthiness Directive?

No — AD 99-22-14 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 99-22-14 apply to?

AD 99-22-14 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 99-22-14

one-time

Official AD 99-22-14 · FR doc 99-28075 · 1999-10-29 · turbine engine

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

What this AD requires

This amendment supersedes an existing airworthiness directive (AD), applicable to certain Pratt & Whitney JT8D-200 series turbofan engines, that currently requires installation of high pressure turbine (HPT) containment hardware. This amendment requires removing low pressure turbine (LPT)-to-exhaust case bolts and nuts and replacement with improved LPT-to-exhaust case bolts and nuts, and installation of improved HPT containment hardware. This amendment is prompted by uncontained HPT events resulting from HPT shaft fractures and LPT flange separations resulting from LPT blade failures. The actions specified by this AD are intended to prevent damage to the airplane resulting from uncontained engine debris following an HPT shaft fracture or an LPT blade failure.

Which aircraft AD 99-22-14 applies to

MakesPratt & Whitney

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

Whether AD 99-22-14 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 99-22-14 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.