The NTSB has shared strong new airport surveillance video showing the separation of the left engine from the plane.
The chair of the NTSB expressed concern over the possibility of a mid-air collision at the Burbank Airport.
The air traffic controller who was managing numerous aircraft around Reagan National Airport felt a "little overwhelmed" just a few minutes before an American Airlines jet collided midair with an Army helicopter near Washington D.C., an investigator said.
The NTSB has released its preliminary report into the fatal collision of two helicopters in the skies over Hammonton, New Jersey.
Questions remain as the NTSB investigates the deadly plane crash that killed former NASCAR driver Greg Biffle and his family
SEPTA is facing yet another setback, as it will miss another federally mandated deadline involving its Silverliner IV cars.