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Air traffic control systems (31 - 40 of 45 items)

Air Traffic Control: Efforts to Modernize Oceanic System Delayed
http://www.gao.gov/products/IMTEC-91-2

IMTEC-91-2: Published: Jan 16, 1991. Publicly Released: Jan 16, 1991.
Air Traffic Control: Status of FAA's Effort to Modernize the System
http://www.gao.gov/products/RCED-90-146FS

RCED-90-146FS: Published: Apr 17, 1990. Publicly Released: Apr 17, 1990.
Aircraft Noise: Implementation of FAA's Expanded East Coast Plan
http://www.gao.gov/products/RCED-88-143

RCED-88-143: Published: Aug 5, 1988. Publicly Released: Aug 5, 1988.