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Airworthiness Directive 2025-10-11

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Official AD 2025-10-11 · FR doc 2025-09007 · 2025-05-20 · turbine engine

Airworthiness Directives; General Electric Company Engines

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain General Electric Company (GE) Model CF6-80E1A2, CF6-80E1A3, CF6-80E1A4, and CF6-80E1A4/B engines. This AD was prompted by a manufacturer investigation that revealed certain high-pressure turbine (HPT) stage 1 and HPT stage 2 disks were manufactured from powder metal material suspected to contain iron inclusion. This AD requires replacement of affected HPT stage 1 and HPT stage 2 disks with parts eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2025-10-11 applies to

MakesGeneral Electric Company
ModelsCF6-80E1A2, CF6-80E1A3, CF6-80E1A4, CF6-80E1A4/B, CF6
Part-conditional — 1863M36G06, 1778M72P05.

Applies only to engines with an installed HPT stage 1 disk (P/N 1863M36G06, S/N GWN0GP27, GWN0GPM8, GWN0GP26, TMT5SW61, TMT5SW59, TMT5SW64, TMT5SW82, or GWN0GPMG) or HPT stage 2 disk (P/N 1778M72P05, S/N BTB77100, MUNLD123, MUNLD122, MUN5B794, or BTB77102) identified in Table 1 to paragraph (c) of the AD.

Whether AD 2025-10-11 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 2025-10-11 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.