The head of the National Transportation Safety Board sharply criticized U.S. officials for failing to act before the January 29 collision of a U.S. Army helicopter with an American Airlines regional jet in Washington that killed 67 people.

U.S. Transportation Secretary Sean Duffy said Tuesday the Federal Aviation Administration failed to act despite dozens of near miss incidents before a fatal Jan. 29 crash between an American Airlines regional jet and Army helicopter near Reagan Washington National Airport that killed 67 people.

The National Transportation Safety Board will hold three days of hearings on the fatal midair collision between a passenger jet and an Army helicopter