Is AD 98-27478 a recurring Airworthiness Directive?

No — AD 98-27478 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 98-27478 apply to?

AD 98-27478 applies to Fokker — models 0100. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 98-27478

one-time

AD 98-27478 · 1998-10-16 · airframe

Airworthiness Directives; Fokker Model F.28 Mark 0070 and 0100 Series Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD), applicable to all Fokker Model F.28 Mark 0070 and 0100 series airplanes, that requires a one-time inspection of the torque links of the main landing gear (MLG) assemblies to determine if the lockwire is present on the apex bolt; and corrective action, if necessary. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent failure of the MLG due to loose connections between the upper and lower torque links of the MLG.

Which aircraft AD 98-27478 applies to

MakesFokker

Models0100

applicability derived from the AD summary — confirm the model/serial from the records

Whether AD 98-27478 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 98-27478 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.