Airworthiness directives › 2026-14-03
AD 2026-14-03 Airworthiness Directives; General Electric Company Engines
Applicability*9
This AD applies to all General Electric Company (GE) engines listed in paragraphs (c)(1) and (2) of this AD with a fuel tube hose installed having a part number (P/N) identified in table 1 to paragraph (c) of this AD. (1) GEnx-1B engines: Model GEnx-1B64, GEnx-1B64/P1, GEnx-1B64/P2, GEnx-1B67, GEnx-1B67/P1, GEnx-1B67/P2, GEnx-1B70, GEnx-1B70/75/P1, GEnx-1B70/75/P2, GEnx-1B70/P1, GEnx-1B70/P2, GEnx-1B70C/P1, GEnx-1B70C/P2, GEnx-1B74/75/P1, GEnx-1B74/75/P2, GEnx-1B76/P2, and GEnx-1B76A/P2. (2) GEnx-2B engines: Model GEnx-2B67, GEnx-2B67B, and GEnx-2B67/P. Table 1 to Paragraph ( c )—Affected Fuel Tube Hoses Engine model Part name P/N GEnx-1B Fuel cooled oil cooler (FCOC) fuel return hose manifold 2426M07P01 FCOC fuel cooling inlet tube hose 2426M08P01 GEnx-2B Heat exchanger fuel tube hose 2477M34P01 Heat exchanger inlet fuel tube hose 2477M35P01
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
For the purpose of this AD: (1) A “part eligible for installation” is any fuel tube hose that does not have a P/N identified in table 1 to paragraph (c) of this AD with preform manufacturing lot number 684141 or 677536. (2) An “engine shop visit” is the induction of an engine into the shop for any maintenance.
Unsafe condition
This AD was prompted by a report of a fuel leak caused by a defective fuel tube hose connecting the main fuel-oil heat exchanger. The FAA is issuing this AD to prevent cracking and fuel leakage in affected fuel tube hoses. The unsafe condition, if not addressed, could result in uncontrolled engine fire and damage to the airplane.
Affected ADs
None.
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