If a flight plan is not properly closed 30 minutes past the estimated time of arrival (ETA), it triggers a series of safety protocols that prioritize the well-being of the flight crew and passengers. The action that typically follows is the initiation of search and rescue efforts.
This procedure is in place because the failure to close a flight plan indicates that the aircraft may have encountered issues or an emergency situation that has prevented safe landing and communication. Air traffic control relies on closed flight plans to confirm the safe arrival of aircraft. When this closure does not occur within the expected timeframe, it raises alarms, prompting authorities to take swift action to locate and assist the aircraft in question.
Initiating search and rescue efforts allows for the possibility of locating the aircraft quickly, providing assistance and ensuring that any potential emergencies are addressed as soon as possible. Thus, taking prompt action to search for the missing aircraft underscores the importance of safety in aviation operations.