What we know so far about the midair collision over the Potomac River
A plane collided with a helicopter while trying to land at Ronald Reagan Washington National Airport outside Washington, D.C., on Wednesday, officials said, grounding all flights at the airport. "A PSA Airlines Bombardier CRJ700 regional jet collided in midair with a Sikorsky H-60 helicopter while on approach to Runway 33 at Reagan Washington National Airport around 9 p.