Ronald Reagan Washington National Airport is known for its close proximity to Washington, D.C., but after its first deadly plane crash in more than four decades, several of the airport’s difficulties are under scrutiny.

Reagan Airport, or DCA as it is also known, has faced questions about its viability and flight load in past years, but with the midair collision between American Airlines Flight 5342 arriving from Wichita, Kansas, and an Army Black Hawk Sikorsky H-60, many of those concerns are resurfacing. These are some of the concerns and questions surrounding the airport.