02063nam 2200469 a 450 991069703200332120230902161801.0(CKB)5470000002384584(OCoLC)610579562(EXLCZ)99547000000238458420100503d2007 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierNext Generation Air Transportation System[electronic resource] progress and challenges in planning and implementing the transformation of the National Airspace System : testimony before the Subcommittee on Aviation Operations, Safety and Security, Committee on Commerce, Science and Transportation, U.S. Senate /statement of Susan Fleming[Washington, D.C.] :U.S. Govt. Accountability Office,[2007]1 online resource (13 pages) illustrationsTestimony ;GAO-07-649TTitle from PDF title screen (GAO, viewed on Apr. 30, 2010)."For release ... March 22, 2007."Includes bibliographical references.Testimony ;GAO-07-649T.Next Generation Air Transportation System National Airspace System (U.S.)Aeronautics and stateUnited StatesAir traffic controlUnited StatesAutomationAeronautics, CommercialUnited StatesNational Airspace System (U.S.)Aeronautics and stateAir traffic controlAutomation.Aeronautics, CommercialFleming Susan A1391194United States.Congress.Senate.Committee on Commerce, Science, and Transportation.Subcommittee on Aviation Operations, Safety, and Security.United States.Government Accountability Office.GPOGPOBOOK9910697032003321Next Generation Air Transportation System3515143UNINA