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Airworthiness Directive E9-24088

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AD E9-24088 · 2009-10-07 · reciprocating engine

Airworthiness Directives; Teledyne Continental Motors O-470, IO-470, TSIO-470, IO-520, TSIO-520, IO-550, and IOF-550 Series Reciprocating Engines; Correction

What this AD requires

The FAA is correcting airworthiness directive (AD) 2009-19-06, which published in the Federal Register on September 22, 2009. That AD applies to Teledyne Continental Motors O-470, IO-470, TSIO-470, IO-520, TSIO-520, IO-550, and IOF-550 series reciprocating engines. The two references to the AD number are incorrect due to a software problem with the automated AD number assignment system. This document corrects those references. In all other respects, the original document remains the same.

Which aircraft AD E9-24088 applies to

MakesTeledyne Continental Motors O-470, Io-470, Tsio-470, Io-520, Tsio-520, Io-550, And Iof-550
ModelsIO-470, IO-520, IO-550, O-470, TSIO-470, TSIO-520

applicability derived from the AD summary — confirm the model/serial from the records

Whether AD E9-24088 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 E9-24088 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.