NOTAM

Critical modernization for pilot safety: Critical modernization for pilot safety: The FAA has moved the U.S. NOTAM aviation alert system to the cloud as part of a major modernization effort to improve safety and reliability

An official announcement in Bulgarian airspace updates the closure of runway 09/27 at Sofia Airport at night, except for military flights

Critical modernization for pilot safety: Critical modernization for pilot safety: The FAA has moved the U.S. NOTAM aviation alert system to the cloud as part of a major modernization effort to improve safety and reliability