1. A method for updating at least one software component belonging to at least one operationally approved software application utilized in an aircraft computer system, said method being characterized in that said at least one operationally approved software application comprises at least one first software component using at least one second software component and in that it comprises the following steps: receiving, by the aircraft computer system, a software component comprising at least one update of said at least one second software component; analyzing, by the aircraft computer system, said at least one received software component and determining a class of said at least one update of said at least one second software component in response to said analysis step wherein the class is based on at least one of a plurality of regulations and a plurality standards; transmitting, depending on said class, by the aircraft computer system, said at least one update of said at least one second software component to at least one of said at least one first software component and a central download system; if said at least one update of said at least one second software component is transmitted to at least said at least one first software component, updating of said at least one second software component by the aircraft computer system; creating a configuration report showing said update; interrogating said at least one first software component to obtain items of configuration information from said at least one first software component relating to said at least one second software component; integrating said obtained items of configuration information into a configuration report generated by said central download system; receiving an activation request of said update of said at least one second software component, said step of updating said at least one second software component being performed in response to the receipt of said activation request, which said items of configuration information comprise an indication of activation or non-activation of said update of said at least one second software component.