Definition
A search and rescue capability in which air traffic surveillance data — radar returns, ADS-B position reports, and transponder information — is used to assist in locating an aircraft that is overdue, missing, or in distress. Air traffic facilities replay or analyze recorded surveillance data to determine the aircraft's last known position, track, altitude, and time, then pass that information to search and rescue authorities to narrow the search area.
Plain English
When an aircraft goes missing, controllers can look back at their radar and ADS-B records to see where it was last seen and where it was heading. That information is given to search and rescue teams so they know where to start looking.
Context Anchor
Seen in FAA glossary material and search-and-rescue discussions, especially when explaining how aircraft position information can help locate an aircraft after contact is lost.
Derivation
Surveillance comes from a French word meaning “to watch over.” In aviation, it means using systems that show or record where aircraft are. That helps explain the term: SE SAR is search and rescue improved by better aircraft-watching information.
Why Pilots Care
Enables faster location of aircraft in emergencies, increasing survival chances.
Intuition Check
SE SAR does not mean air traffic control is personally watching every aircraft for rescue purposes at all times. It means available aircraft position information can be used to help search teams if an aircraft becomes missing or overdue.
Example Sentence 1
After the aircraft was reported overdue, the rescue coordination center requested SE SAR data from the controlling facility to identify its last known position.
Example Sentence 2
SE SAR enhances traditional search methods by providing precise last-known positions from radar returns.