Is AD 98-19484 a recurring Airworthiness Directive?

No — AD 98-19484 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 98-19484 apply to?

AD 98-19484 applies to Rotax — models 912 F, 912. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 98-19484

one-time

AD 98-19484 · 1998-07-23 · reciprocating engine

Airworthiness Directives; Bombardier-Rotax GmbH 912 F Series Reciprocating Engines

What this AD requires

This amendment adopts a new airworthiness directive (AD) that is applicable to Bombardier-Rotax GmbH 912 F series reciprocating engines. This action requires installation of an improved fuel pump and fuel supply tube. This amendment is prompted by reports of fuel leaks at the outlet port of the fuel pump. The actions specified in this AD are intended to prevent fuel leaks from the fuel pump, which could result in undetected loss of fuel in flight or, an engine fire.

Which aircraft AD 98-19484 applies to

MakesRotax

Models912 F, 912

Serial-conditional — narrows to serials 4,412.502–4,412.764.

Whether AD 98-19484 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 98-19484 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.