The National Center Tracking of Ships (CNAN) is located in Rio de Janeiro (RJ) and ensures the timely identification of possible danger, subsidizing the flight crew with information that can assist in decision-making. The role is to supervise and support the fleet, increasing the safety of operations. Operated full time, the tool shows the position of the ships of the fleet, in real time, as well as other vessels that are nearby, through Automatic Identification System (AIS).