FAA's Voice Switching and Control System

T-IMTEC-89-6: Published: May 4, 1989. Publicly Released: May 4, 1989.

Additional Materials:


Office of Public Affairs
(202) 512-4800

GAO discussed the Federal Aviation Administration's (FAA) progress in developing its Voice Switching and Control System (VSCS), intended to provide voice communications for new controller workstations developed under the FAA Advanced Automation System. GAO noted that: (1) original estimates for VSCS prototype development increased from $67 million to $145 million; (2) total project cost estimates increased from $258 million to over $786 million; (3) prototype developers experienced unanticipated technical difficulties in meeting VSCS requirements, necessitating significant changes in proposed hardware and software; (4) technical difficulties have delayed the estimated date for VSCS implementation from 1986 to 1992; (5) prototype contractors may be striving to meet target dates at the expense of work quality; (6) VSCS development problems could delay Advanced Automation System workstation implementation; and (7) FAA does not plan to complete its testing requirements before awarding a production contract. GAO believes that FAA must complete all necessary testing before awarding the production contract to ensure that VSCS will meet its requirements.

Oct 3, 2018

Sep 13, 2018

Sep 5, 2018

Jul 30, 2018

Jul 26, 2018

Jul 19, 2018

Jul 12, 2018

May 31, 2018

May 29, 2018

May 24, 2018

Looking for more? Browse all our products here