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Airworthiness Directive 85-23-07

one-time
AD 85-23-07 · 1985-01-01 · other

Airworthiness Directives; those persons to whom it was made immediately effective by priority letter AD 85-23-07, issued November 20, 1985, which contained

Which aircraft AD 85-23-07 applies to

MakesAerostar Aircraft CorporationCessna Aircraft CompanyMooney Aviation Company IncSocataVulcanair S.P.A.Textron Aviation Inc.Piper Aircraft Inc.
ModelsPA-60-700P (Aerostar 700P), 172L, 172P, 172RG, 182P, 182Q, 182R, 210R, PA-32R-301T, PA-34-200T, PA-34-220T, PA-46-310P, TB 20, AP68, TP Series 300, Spartacus, P 68C, P 68C-TC

Made immediately effective by priority letter AD 85-23-07 issued November 20, 1985; multi-manufacturer AD; full applicability text truncated in source and model list may be incomplete (some model designations mid-list were cut off).

Whether AD 85-23-07 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 85-23-07 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.