EASA AD US-2020-18-09
Engine Fuel and Control - Overspeed Fuel Solenoid Valve Assembly & Fuel Filter Outlet - Inspection
The Federal Aviation Administration Airworthiness Directive 2020-18-09 is a final rule addressing all Honeywell International Inc. ALF502L, ALF502L-2, ALF502L-2A, ALF502L-2C, ALF502L-3, ALF502R-3, ALF502R-3A, ALF502R-4, ALF502R-5, ALF502R-6, LF507-1F, and LF507-1H model turbofan engines. It mandates inspections and maintenance of the overspeed fuel solenoid valve assembly and fuel filter outlet to prevent unsafe conditions caused by uncontained release of low-pressure turbine blades. This directive applies to engines installed on various aircraft using these Honeywell turbofan models.
Airworthiness DirectiveMaintenanceSafety MgmtHoneywell International ALF502Honeywell International LF507