Is AD 85-26-03 a recurring Airworthiness Directive?

No — AD 85-26-03 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 85-26-03 apply to?

AD 85-26-03 applies to Scott Aviation. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 85-26-03

one-time

AD 85-26-03 · 1985-01-01 · appliance

Airworthiness Directives; SCOTT AVIATION Oxygen Connectors, Part Numbers 289-56 and 289-56-1

Which aircraft AD 85-26-03 applies to

MakesScott Aviation

Part-conditional — 289-56, 289-56-1, 289-127, 289-127-2.

Applies to Scott Aviation oxygen connectors, P/N 289-56 and 289-56-1. Constant-flow oxygen masks fitted with these connectors include Scott P/N 289-127, 289-127-2, and others (list truncated in source).

Whether AD 85-26-03 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 85-26-03 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.

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.