Is AD 89-21-01 a recurring Airworthiness Directive?

No — AD 89-21-01 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 89-21-01

Q: Which aircraft does AD 89-21-01 apply to?

AD 89-21-01 applies to Eurocopter France — models AS-350B, AS-350B1, AS-350B2, AS-350B3, AS-350BA, AS-350C, AS-350D, AS-350D1. Serial/part conditions may narrow it to specific aircraft.

one-time

AD 89-21-01 · 1989-01-01 · airframe

Airworthiness Directives; 6, 1989, which contained this amendment. FOOTER: Eurocopter France AS-350B AS-350B1 AS-350B2 AS-350B3 AS-350BA AS-350C AS-350D AS-

Which aircraft AD 89-21-01 applies to

MakesEurocopter France

ModelsAS-350B, AS-350B1, AS-350B2, AS-350B3, AS-350BA, AS-350C, AS-350D, AS-350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, AS-350, AS355

Made immediately effective by telegraphic AD, issued 1989.

Whether AD 89-21-01 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

Supersession

Superseded by AD 2004-05-23 — comply with the superseding directive.

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 89-21-01 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 →

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.