The CRJ-900 can seat either 70 or 76 people, but the layout and basic dimensions for the craft are nearly identical no matter the capacity.

Investigators are looking into how all 76 passengers and four crew members aboard Delta Air Lines Flight 4819 survived after the plane crash-landed in Toronto on Monday.

A Delta Air Lines regional plane crashed while landing Monday afternoon at Toronto Pearson International Airport, resulting in the evacuation of 80 passengers and crew, U.S. and Canadian authorities said.