Is AD 96-18-17 a recurring Airworthiness Directive?

No — AD 96-18-17 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 96-18-17 apply to?

AD 96-18-17 applies to Alliedsignal — models TSCP700-4B, TSCP700-4E, TSCP700-5, TSCP700. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 96-18-17

one-time

Official AD 96-18-17 · FR doc 96-25168 · 1996-10-09 · other

Airworthiness Directives; AlliedSignal Inc. TSCP700-4B, -4E, and -5 Auxiliary Power Units

What this AD requires

This amendment adopts a new airworthiness directive (AD), applicable to AlliedSignal Inc. (formerly Garrett) TSCP700-4B, -4E, and -5 auxiliary power units (APUs), that requires removal from service of certain high pressure turbine (HPT) disks identified by serial number, and replacement with serviceable parts. This amendment is prompted by the discovery of a material defect in certain HPT disk forgings that may result in HPT disk rupture prior to reaching the disk cyclic life limit. The actions specified by this AD are intended to prevent an HPT disk rupture.

Which aircraft AD 96-18-17 applies to

MakesAlliedsignal

ModelsTSCP700-4B, TSCP700-4E, TSCP700-5, TSCP700

Auxiliary power unit (APU); applies only to units with high pressure turbine (HPT) disks identified by serial number in AlliedSignal Service Bulletin No. TSCP700-49-A7168, dated November 7, 1995.

Whether AD 96-18-17 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 96-18-17 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.