NTSB hold 2nd briefing on Wednesday’s deadly mid-air collision in Washington, D.C.
NTSB to hold a media briefing at 4 p.m. ET today on its investigation into Wednesday’s mid-air collision involving a PSA Airlines Bombardier CRJ700 airplane and a Sikorsky H-60 military helicopter near Ronald Reagan Washington National Airport. Briefing will be held at the… pic.twitter.com/vSaYBb0tFw