Opportunity
Federal Register #2026-14478
FAA Directive: Replacement of Defective GE GEnx Engine Fuel Tube Hoses
Buyer
Federal Aviation Administration
Posted
July 17, 2026
Identifier
2026-14478
NAICS
336412
The Federal Aviation Administration (FAA), through its Aircraft Certification Service, AIR520 Continued Operational Safety Branch, has issued an airworthiness directive (AD) for specific General Electric (GE) GEnx1B and GEnx2B aircraft engines. - Government Buyer: - Federal Aviation Administration (FAA), Aircraft Certification Service, AIR520 Continued Operational Safety Branch - OEM Highlight: - General Electric Company (GE) is the primary OEM for the affected engines and replacement parts - Products/Parts Required: - Replacement of defective fuel tube hoses identified by part numbers: - 2426M07P01 (FCOC fuel return hose manifold) - 2426M08P01 (FCOC fuel cooling inlet tube hose) - 2477M34P01 (heat exchanger fuel tube hose) - 2477M35P01 (heat exchanger inlet fuel tube hose) - Only hoses with preform manufacturing lot numbers 684141 or 677536 are affected - Quantities: - Applies to 13 U.S.-registered engines (exact quantities per part not specified) - Notable Requirements: - All affected hoses must be removed and replaced with eligible parts at the next engine shop visit - Compliance procedures are detailed in GE GEnx1B Service Bulletin 730116 R00 and GEnx2B Service Bulletin 730108 R00 - No reporting requirement for part identification - The directive is intended to prevent fuel leaks and potential engine fires
Description
This final rule airworthiness directive (AD) applies to certain General Electric Company (GE) engines, specifically various models of GEnx1B and GEnx2B engines. The AD was prompted by a report of a fuel leak caused by a defective fuel tube hose connecting the main fuel-oil heat exchanger. It requires the identification and removal of affected fuel tube hoses with specific preform manufacturing lot numbers and replacement with parts eligible for installation to prevent cracking and fuel leakage, which could lead to uncontrolled engine fire and damage to the airplane. The AD is effective August 21, 2026, and includes detailed compliance instructions and incorporated service bulletins for affected engines.