Jan. 11, 2023 — An American Airlines Airbus A321 airplane takes off past the air traffic control tower at Ronald Reagan Washington National Airport in Arlington, Virginia. (Photo by SAUL LOEB/AFP via Getty Images) FAA preliminary investigation traces NOTAMS outage to damaged database file If the diagnosis is correct, this will be the latest example of a major federal IT system outage caused by a corrupted database file. Jan 12, 2023 By John Hewitt Jones