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Airworthiness Directive 2009-04-17

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Official AD 2009-04-17 · FR doc E9-3615 · 2009-02-26 · turbine engine

Airworthiness Directives; General Electric Company CF6-45 and CF6-50 Series Turbofan Engines

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for General Electric Company (GE) CF6-45 and CF6-50 series turbofan engines. This AD requires replacing certain forward and aft centerbodies of the long fixed core exhaust nozzle (LFCEN) assembly. This AD results from the engine manufacturer issuing new service information. We are issuing this AD to prevent the forward and aft centerbody of the LFCEN assembly from separating due to high imbalance engine conditions, leading to damage to the airplane.

Which aircraft AD 2009-04-17 applies to

MakesGeneral Electric
ModelsCF6-45A, CF6-45A2, CF6-50A, CF6-50C, CF6-50CA, CF6-50C1, CF6-50C2, CF6-50C2B, CF6-50C2D, CF6-50E, CF6-50E1, CF6-50E2, CF6-50E2B, CF6-45, CF6-50
Part-conditional — 1313M55G01, 1313M55G02, 9076M28G09, 9076M28G10, 1313M56G01, 9076M46G05.

Applies only to engines with a long fixed core exhaust nozzle (LFCEN) assembly forward centerbody P/N 1313M55G01 or G02, or P/N 9076M28G09 or G10, and aft centerbody P/N 1313M56G01 or 9076M46G05, installed.

Whether AD 2009-04-17 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 2009-04-17 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.