Is AD 98-10-09 a recurring Airworthiness Directive?

Yes — AD 98-10-09 requires a repetitive inspection every 25 hours. Next-due depends on the aircraft's time in service.

Which aircraft does AD 98-10-09 apply to?

AD 98-10-09 applies to Eurocopter France. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 98-10-09

recurring

Official AD 98-10-09 · FR doc 98-23095 · 1998-08-31 · airframe

Airworthiness Directives; Eurocopter France Model SA.315B, SA.316B, SA.316C, SA.319B, and SE.3160 Helicopters

What this AD requires

This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 98-10-09 which was sent previously to all known U.S. owners and operators of Eurocopter France Model SA.315B, SA.316B, SA.316C, SA.319B, and SE.3160 helicopters by individual letters. This AD requires an initial and recurring inspections of the blade spar for cracks. This amendment is prompted by an accident in which a Model SA.315B helicopter lost a main rotor blade. The cause of the blade failure was fatigue cracking. This condition, if not corrected, could result in separation of a blade and subsequent loss of control of the helicopter.

Repetitive inspection. Re-inspect every 25 hours. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 98-10-09 applies to

MakesEurocopter France

Whether AD 98-10-09 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 98-10-09 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.