Airworthiness Directive 52-26-01
one-timeAD 52-26-01 · 1952-01-01 · other
Airworthiness Directives; 28, 1952, covers this same subject.) FOOTER: Sierra Hotel Aero, Inc. Navion (Army L-17A) Navion A (Army L-17B and L-17C) Navion B
Which aircraft AD 52-26-01 applies to
Makes28 1952 Covers This Same Subject ) Footer Sierra Hotel Aero Navion Navion A Navion B Sierra Hotel Aero \Navion Sierra Hotel Aero \Navion A Sierra Hotel Aero \Navion B This Information Is Not Available Unknown 52-26-01 Ad Final Rules 52-26-01 Navion Applies To All
Applies to all models of the make above.
Whether AD 52-26-01 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 52-26-01 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.