Coast Guard Near Miss DCA September 14, 2022 ~9:07pm

5:35 "Blackjack 2, searching negative contact"
6:00 "Blackjack 2, near miss, mark the tapes"
I composited the FOIA'd audio with limited ADSBExchange data, the FAA route chart and icons denoting each craft as they check in - I omit Medstar medical helicopter leaving the area.
Blackjack - Coast Guard helicopter
Nighthawk - Marine Corps Presidential helicopters
Anacostia - JB Bolling HQ for the Presidential Squadron
Boardwalk - DCA hangar for coast guard