Is AD 90-02-04 a recurring Airworthiness Directive?

No — AD 90-02-04 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 90-02-04

Q: Which aircraft does AD 90-02-04 apply to?

AD 90-02-04 applies to Bombardier Inc. — models DHC-8-101, DHC-8-102, DHC-8-103, DHC-8-106, DHC-8-201, DHC-8-202, DHC-8-301, DHC-8-311. Serial/part conditions may narrow it to specific aircraft.

one-time

AD 90-02-04 · 1990-01-01 · airframe

Airworthiness Directives; 12, 1990. FOOTER: Bombardier Inc. DHC-8-101 DHC-8-102 DHC-8-103 DHC-8-106 DHC-8-201 DHC-8-202 DHC-8-301 DHC-8-311 DHC-8-315 Bombar

Which aircraft AD 90-02-04 applies to

MakesBombardier Inc.

ModelsDHC-8-101, DHC-8-102, DHC-8-103, DHC-8-106, DHC-8-201, DHC-8-202, DHC-8-301, DHC-8-311, DHC-8-315, DHC-8

Extracted text shows effective date truncated to "12, 1990" (likely a February 1990 effective date).

Whether AD 90-02-04 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 90-02-04 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.