FILE PHOTO: A crane retrieves part of the wreckage from the Potomac River, in the aftermath of the collision of American Eagle flight 5342 and a Black Hawk helicopter that crashed into the river, by the Ronald Reagan Washington National Airport, in Arlington, Virginia, U.S., February 4, 2025. REUTERS/Eduardo Munoz/File Photo

The National Transportation Safety Board will question witnesses Thursday about air traffic control training and collision avoidance technology, two key parts of the investigation into January’s deadly midair collision at Ronald Reagan Washington National Airport.

The hearing, the second of three days, is focused on the training guidance of the parties involved in the Jan. 29 incident that resulted in the deaths of 67 people. NTSB started the daylong hearing examining the responsibilities and readiness of DCA's air traffic controllers.