Is AD 98-15677 a recurring Airworthiness Directive?

No — AD 98-15677 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 98-15677 apply to?

AD 98-15677 applies to Fokker — models 200, 300, 400, 500, 600, 700. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 98-15677

one-time

AD 98-15677 · 1998-06-15 · airframe

Airworthiness Directives; Fokker Model F27 Mark 100, 200, 300, 400, 500, 600, and 700 Series Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD), applicable to certain Fokker Model F27 Mark 100, 200, 300, 400, 500, 600, and 700 series airplanes, that requires replacement of the actuating ram bobbin and O-ring seals of the main landing gear (MLG) with new bobbins and improved O-ring seals. 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 loss of dampening of the MLG actuating ram, which could result in failure of the MLG lockstruts, and consequent structural damage to the airplane.

Which aircraft AD 98-15677 applies to

MakesFokker

Models200, 300, 400, 500, 600, 700

certain

Whether AD 98-15677 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 98-15677 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.