A system for remotely controlling a fuel-supply system associated with a locomotive includes multiple detectors positioned on board the locomotive and the fuel-supply system. The detectors are configured to generate a warning signal upon detection of an abnormality in the operation of at least one of: the locomotive and the fuel-supply system. The system further includes a controller that is remotely located and communicably coupled to each of the detectors. The controller is configured to receive the warning signal from at least one of the detectors, the warning signal being indicative of the abnormality. The controller is also configured to provide, at a graphical user interface (GUI), a list of user-allowable actions based on a type of abnormality detected. The controller is then configured to operably actuate a relay associated with the fuel supply system on receiving a chosen user-allowable action from the list of user-allowable actions.