A computer implemented method, apparatus, and computer program product for managing aircraft software parts. An aircraft software part is received at a library. The received part is stored in the library with other aircraft software parts. A user interface is provided to manipulate the aircraft software parts. Responsive to receiving a user input from the user interface to uplink a selected aircraft software part to a target aircraft data processing system, a command is created to send the selected part to an aircraft in which the target aircraft data processing system is located. The uplink command is stored in a queue in the storage in the library. The uplink command is distributed to a proxy server application in response to a request for commands. Responsive to receiving a request from the proxy server application processing the stored uplink command, the selected part is sent to the proxy server application.