- N.T.S.B. Details Evidence in Fatal Crash at Reagan National Airport The New York Times
- Less than a second before hitting a passenger jet, helicopter instructor told pilot to change course, NTSB hearing reveals CNN
- Key Takeaways from the D.C. Plane Crash Hearing The New York Times
- Helicopter pilots didn’t know how high they were, NTSB says in DC crash hearing ABC News
- Helicopter in deadly DC airport collision had faulty altitude gauge, NTSB says BBC
