Is AD 98-15133 a recurring Airworthiness Directive?

Yes — AD 98-15133 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 98-15133 apply to?

AD 98-15133 applies to British Aerospace — models 745, 745D, 810. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 98-15133

recurring

AD 98-15133 · 1998-06-09 · airframe

Airworthiness Directives; British Aerospace Model Viscount 744, 745, 745D, and 810 Series Airplanes

What this AD requires

This document confirms the effective date of a direct final rule published on April 2, 1998, which adopted a new airworthiness directive (AD) that is applicable to all British Aerospace Model Viscount 744, 745, 745D, and 810 series airplanes. This amendment requires repetitive inspections to detect cracking and corrosion of components of the engine nacelle subframe structure, and corrective action, if necessary; and replacement of any component that has reached its life limit (safe life) with a new or serviceable component. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified in this AD are intended to ensure periodic replacement of certain engine nacelle subframe components that have reached their maximum life limits. Cracking and corrosion of these components, if not detected and corrected in a timely manner, could result in reduced structural integrity of the engine nacelle subframe structure, separation of the engine from the airframe, and reduced controllability of the airplane.

Repetitive inspection. Re-inspect. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 98-15133 applies to

MakesBritish Aerospace

Models745, 745D, 810

certain

Whether AD 98-15133 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 98-15133 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.