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Information Request (INREQ) Request for information concerning an overdue VFR aircraft
originated by FSS.
Alert Notice (ALNOT) Request for an extensive communications search for overdue,
unreported, or missing aircraft originated by FSS or ARTCC.
Alert Notice Issuance Issue an ALNOT to all concerned facilities within 50 miles on either
side of the route of flight from the last reported position to destination.
ALNOT Search Area Area including the last known position of the aircraft, with pertinent
information for SAR teams.
Information to be Forwarded to ARTCCs Flight plan, last transmission time, position report,
beacon code, persons on board, fuel status, and other relevant details.
Information to be Forwarded to RCC by ARTCCs Facility and person calling, flight plan, last
transmission time, position report, beacon code, persons on board, fuel status, and other
relevant details.
Aircraft beacon code A unique code assigned to an aircraft for identification purposes.
Responsibility Transfer to RCC The transfer of search responsibility to the Rescue
Coordination Center (RCC) under specific conditions.
ALNOT Aeronautical Information Manual (AIM) code for an alert notice used in search and
rescue operations.