IAPs and other current aeronautical charts. They are also used to advertise temporary flight restrictions caused by such things as natural disasters or large-scale public events that may generate congestion of air traffic over a site. Pointer NOTAMs NOTAMs issued by a flight service station to highlight or point out another NOTAM, such as an FDC or NOTAM (D) NOTAM. This type of NOTAM will assist users in cross-referencing important information that may not be found under an airport or NAVAID identifier. Special activity airspace (SAA) NOTAMs SAA NOTAMs are issued when SAA (the term "SAA" includes SUA, as well as instrument and visual military training routes, aerial refueling tracks and anchors) will be active outside the published schedule times and when required by the published schedule. Military NOTAMs NOTAMs pertaining to U.S. Air Force, Army, Marine, and Navy navigational aids/airports that are part of the NAS. Incidents On 11 January 2023, the US NOTAM system failed, which grounded all domestic flights until 9:00 AM EST (UTC-5) the same day. See also Notice to mariners — marine equivalent References External links The Annual Greece v Turkey NOTAM Battle - OPSGROUP PilotWeb FAA NOTAM NOTAM Search (retrieval of Letters to Airmen) FAA NOTAM dinsQueryWeb NOTAM decoder - drorpilot http://ead.dhmi.gov.tr/ Turkish NOTAM display and database NOTAM tutorial Aviation abbreviations - Civil Aviation Safety Authority Air traffic control Aircraft operations Aviation publications