 Upon becoming aware of a case from a "MAYDAY" call or other form of communication, SAR controllers work to gather data about the case and more often than not, there are many uncertainties in the initial report.The controller, then, must develop a search area based upon the information, estimate resource availability and capability, promulgate the search plan and deploy the resources.While the assets are conducting a search, the controller begins the process again by gathering additional information, developing a subsequent search, deploying resources and evaluating previous searches.