The near misses on Tuesday came after a string of aviation disasters, including the midair collision between an Army helicopter and a passenger jet last month that killed 67 people.

The Federal Aviation Administration says an American Airlines plane arriving at Ronald Reagan Washington National Airport discontinued its landing, performing a go-around to avoid getting too close to another aircraft departing from the same runway.

An American Airlines flight from Boston aborted its landing in Washington, D.C. Tuesday to avoid another plane.