00988nam 2200205zu 450 991107758850332120260430111620.0(CKB)46359504700041(DGPO)001444492(EXLCZ)994635950470004120260429|2024uuuu || |engur|||||||||||Air traffic control: urgent FAA actions are needed to modernize aging systems : testimony before the Subcommittee on Aviation Safety, Operations, and Innovation, Committee on Commerce, Science, and Transportation, U.S. Senate[Washington, D.C.]: United States Government Accountability Office2024Walsh Kevin223814BOOK9911077588503321Air traffic control: urgent FAA actions are needed to modernize aging systems : testimony before the Subcommittee on Aviation Safety, Operations, and Innovation, Committee on Commerce, Science, and Transportation, U.S. Senate4583801UNINA