Method and kit for preserving a fuel system of an aircraft engine

Abstract

A method and kit for preserving a fuel system of an aircraft engine outside of an engine test cell in preparation for a period of inactivity of the aircraft engine are disclosed. The method comprises: supplying preservation fluid to the fuel system of the aircraft engine; generating a signal to cause the opening of a valve of the fuel system using a control device other than the electronic engine controller of the aircraft engine; and driving a fuel pump of the fuel system to cause some of the preservation fluid to flow through the open valve and in at least part of the fuel system of the aircraft engine.

1 .- 8 . (canceled) 
     
     
         9 . A kit for preserving a fuel system of an aircraft engine outside of an engine test cell without powering an engine electronic controller of the aircraft engine in preparation for a period of inactivity of the aircraft engine, the kit comprising:
 a control device, other than the electronic engine controller of the aircraft engine, configured to:
 be coupled to the fuel system via a connector configured to provide an interface between the electronic engine controller of the aircraft engine and the fuel system of the aircraft engine; and 
 cause a valve of the fuel system to open; and 
   a driver configured to be coupled to an accessory gearbox of the aircraft engine and drive a fuel pump of the fuel system via the accessory gearbox to cause some of the preservation fluid to flow in at least part of the fuel system of the aircraft engine.   
     
     
         10 . The kit as defined in  claim 9 , wherein the driver comprises a motor of a handheld drill. 
     
     
         11 . The kit as defined in  claim 9 , wherein the control device comprises a battery. 
     
     
         12 . The kit as defined in  claim 9 , wherein the control device comprises a handheld unit including a 9-volt battery. 
     
     
         13 . The kit as defined in  claim 9 , comprising a bracket to facilitate coupling of the driver to the accessory gearbox. 
     
     
         14 . The kit as defined in  claim 9 , wherein the valve is a fuel metering valve of a hydro-mechanical metering unit of the fuel system and the control device is configured to generate a control signal to cause opening of the fuel metering valve. 
     
     
         15 . The kit as defined in  claim 9 , wherein the driver is configured to be coupled to a starter interface of the accessory gearbox. 
     
     
         16 .- 20 . (canceled)