Is AD 01-12943 a recurring Airworthiness Directive?

No — AD 01-12943 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 01-12943 apply to?

AD 01-12943 applies to Hartzell — models HC-2Y. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 01-12943

one-time

AD 01-12943 · 2001-05-24 · propeller

Airworthiness Directives; Hartzell Propeller Inc. Y-shank Series Propellers; Correction

What this AD requires

This document makes a correction to Airworthiness Directive (AD) 2001-07-03 applicable to Hartzell Propeller Inc. Y-shank series propellers that was published in the Federal Register on April 4, 2001 (66 FR 17806). The words "and those" in the first sentence of the Applicability paragraph of the regulatory text are incorrect and must be deleted. This document corrects the Applicability paragraph. In all other respects, the original document remains the same.

Which aircraft AD 01-12943 applies to

MakesHartzell

ModelsHC-2Y

Federal Register correction notice for AD 2001-07-03 (related docket 01-28689). Corrects the Applicability paragraph to read: 'This AD is applicable to all Hartzell Propeller Inc. Y-shank series propellers identified by hub serial numbers (SN's) in Table 1 of this airworthiness directive (AD),' removing an erroneous clause. No new applicability data beyond reference to Table 1 hub serial numbers of the underlying AD.

Whether AD 01-12943 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 01-12943 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 →Read the full directive (Federal Register)

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.