Is AD 98-25782 a recurring Airworthiness Directive?

No — AD 98-25782 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 98-25782 apply to?

AD 98-25782 applies to Rolls-Royce Limited, Aero Division Bristol/S.N.E.C.M.A. Olympus 593. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 98-25782

one-time

AD 98-25782 · 1998-09-28 · turbine engine

Airworthiness Directives; Rolls-Royce Limited, Aero Division Bristol/S.N.E.C.M.A. Olympus 593 Series Turbojet Engines

What this AD requires

The FAA is withdrawing the final rule; request for comments, which was published on September 16, 1998 (63 FR 49418). The reason for the withdrawal is because it is a duplicate of a final rule; request for comments, published on September 15, 1998 (63 FR 49278). The September 15, 1998, final rule, remains effective September 30, 1998. The September 15, 1998 amendment adopted a new airworthiness directive (AD) that is applicable to Rolls-Royce Limited, Aero Division--Bristol/ S.N.E.C.M.A. Olympus 593 series turbojet engines.

Which aircraft AD 98-25782 applies to

MakesRolls-Royce Limited, Aero Division Bristol/S.N.E.C.M.A. Olympus 593

Whether AD 98-25782 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 98-25782 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.