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Airworthiness Directive 89-17-03

one-time
AD 89-17-03 · 1989-01-01 · airframe

Airworthiness Directives; International US Helicopter, Inc. Richards Heavylift Helo, Inc. Overseas Aircraft Support Inc UH-1F TH-1L UH-1B UH-1E UH-1L SW204

Which aircraft AD 89-17-03 applies to

MakesInternational Helicopters, Inc.Us Helicopter, Inc.Richards Heavylift Helo, Inc.Overseas Aircraft Support IncSouthwest Florida Aviation International
ModelsUH-1F, TH-1L, UH-1B, UH-1E, UH-1L, SW204 (UH-1B), SW204HP (UH-1B), UH-1A, UH-1, SW204

applicability read from the AD teaser — confirm exact model/serial from the records

Whether AD 89-17-03 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 89-17-03 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.

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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.