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FAA requires airlines to replace GEnx-2B fuel manifolds

December 03, 2018 / JON HEMMERDINGER

The Federal Aviation Administration is ordering airlines to replace fuel manifolds on some GE Aviation GEnx-2B67 engines, which power Boeing 747-8s, due to the risk of an engine fire.An airworthiness directive that takes effect on 4 January comes in response to an engine fire caused by "low-cycle fatigue cracking of the fuel manifold".The order requires airlines to replace the manifolds during the next shop visit.The issue affected 424 GEnx-2B engines worldwide, but GE already issued a service bulletin and only 140 engines still require fixes, the company says.