Just miles away from San Francisco International Airport, the air traffic control tower at the smaller San Carlos Airport is set to go dark this Saturday.
Investigators have recovered the black boxes from both aircraft involved in the deadly midair collision near Washington, D.C., and are working to determine the cause.
While some reports suggest the helicopter pilot may have mistaken another plane for the American Airlines jet, Katz believes it was more likely human error.
As an investigation into the deadly midair collision continues, Denver7 sat down with U.S. Rep. Gabe Evans, a former Army and National Guard Black Hawk helicopter pilot, for his insight.