FAA Mandates GE Engine Hose Swaps to Prevent Fuel Leaks
Published Date: 3/19/2026
Proposed Rule
Summary
The FAA wants to fix a fuel leak problem in certain General Electric GEnx engines by making airlines replace faulty fuel tube hoses with safe ones. This affects many GE engine models and aims to keep flights safe and smooth. Comments on this plan are open until May 4, 2026, and airlines should prepare for the cost and work to swap out these parts soon.
Analyzed Economic Effects
3 provisions identified: 1 benefits, 1 costs, 1 mixed.
Estimated Replacement Costs for U.S. Operators
The FAA estimates this AD would affect 13 engines on U.S. registry and provides per-action cost estimates: replacing the FCOC fuel return hose manifold (P/N 2426M07P01) is estimated at 8 work-hours × $85/hr = $680 labor plus $1,521 parts for $2,201 per product ($24,211 total for U.S. operators); replacing the FCOC fuel cooling inlet tube hose (P/N 2426M08P01) is $680 labor + $1,695 parts = $2,375 per product ($26,125 total); replacing the heat exchanger fuel tube hose (P/N 2477M34P01) is $680 labor + $1,090 parts = $1,770 per product ($3,540 total); and replacing the heat exchanger inlet fuel tube hose (P/N 2477M35P01) is $680 labor + $1,313 parts = $1,993 per product ($3,986 total).
Mandatory Hose Replacement for GE GEnx Engines
If you operate aircraft with affected General Electric GEnx-1B or GEnx-2B engines, the FAA would require removal of specific fuel tube hoses identified by part numbers 2426M07P01, 2426M08P01, 2477M34P01, and 2477M35P01 when their preform manufacturing lot number is 684141 or 677536. The rule requires identification at the next engine shop visit and replacement with parts eligible for installation to prevent cracking, fuel leakage, and possible uncontrolled engine fire.
Small-Entity Economic Finding
The FAA certified that this proposed airworthiness directive would not have a significant economic impact, positive or negative, on a substantial number of small entities under the Regulatory Flexibility Act. Small businesses should note the FAA's determination even though specific replacement costs are provided for affected engines.
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Key Dates
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