A dramatic plane crash in frigid temperatures. And a search and rescue that saved lives on the same partially frozen Potomac River. Almost 43 years ago to the day, tragedy struck when a commercial jet − Air Florida Flight 90 − plunged into icy waters shortly after an afternoon takeoff from the same airport where a passenger jet with 64 people aboard collided with an Army Black Hawk helicopter on Wednesday night.

Officials say the conditions of the Potomac River are complicating recovery efforts of the bodies of the 67 presumed dead in a mid-air collision between American Airlines flight 5342 from Wichita and a military Black Hawk helicopter.

The American Airlines flight was carrying 64 people when it collided with a Black Hawk helicopter near Reagan National Airport.