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Airworthiness Directive 2023-11-06

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Official AD 2023-11-06 · FR doc 2023-12287 · 2023-06-09 · turbine engine

Airworthiness Directives; Engine Alliance Engines

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Engine Alliance (EA) Model GP7270, GP7272, and GP7277 engines. This AD was prompted by a manufacturer investigation that revealed that certain high-pressure turbine (HPT) interstage seals were manufactured from material suspected to contain iron inclusion. This AD requires replacement of the affected HPT interstage seals. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2023-11-06 applies to

MakesEngine Alliance
ModelsGP7270, GP7272, GP7277, GP7200
Part-conditional — 2047M99P02.

Applies only to engines with an installed high-pressure turbine (HPT) interstage seal, P/N 2047M99P02, having S/N BTB71863 or BTB86871.

Whether AD 2023-11-06 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 2023-11-06 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.