Allegheny Airlines was a local service carrier that operated out of Pittsburgh, Pennsylvania, from 1952 to 1979, with routes primarily located in the eastern U.S. It was the forerunner of USAir that was subsequently renamed US Airways, which itself merged with American Airlines. Its headquarters were at Washington National Airport in Arlington County, Virginia.

The Civil Aeronautics Board (CAB) was an agency of the federal government of the United States, formed in 1938 and abolished in 1985, that regulated aviation services and conducted air accident investigations. The agency was headquartered in Washington, D.C.