- 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
- New information from NTSB hearing shows timeline of events in DC plane crash KCCI
- Helicopter in deadly DC airport collision had faulty altitude gauge, NTSB says BBC
- NTSB hearing: Army helicopter’s location system wasn’t working before deadly D.C. plane crash The Washington Post
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