NOTAMs JOHN WAYNE AIRPORT, ORANGE COUNTY (SNA) NOTAMs: View active SNA NOTAMs (PilotWeb)A list of active NOTAMs for John Wayne Airport, Orange County (SNA) published by the Federal Aviation Administration (FAA). Runway Safety: Pilots are encouraged to refresh their Airport operation knowledge on various aspects of runway safety. FAA Runway Safety Web site SNA is an ASDE-X Airport: The Airport Surface Detection Equipment-Model X (ASDE-X) is utilized at John Wayne Airport (SNA). Pilots are requested to operate their transponder on the airport runways and taxiways. View additional info about ASDE-X...