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AFMD-82-91 1 (1982-06-04)

handle is hein.gao/gaobabdll0001 and id is 1 raw text is: 4-.9 *COMPTROLLER GENERAL OF THE UNITED STATES WASHINGTON D.C- 20548 B-206887 t ... . . JUNE4,1982 The Honorable Jack Brooks Chairman, Committee on Government Operations House of Representatives Subject: Review of the Federal Aviation Administration's Response to Chairman Jack Brooks' Letter on the National Airspace System Plan (GAO/AFMD-82-91) Dear Mr. Chairman: As requested in your May 25, 1982, letter (see encl. I), we have analyzed the Federal Aviation Administration's (FAA's) re- sponse to your letter and to our report AFMD-82-66 on FAA's National Airspace System (NAS) Plan (see encls. II and III). GAO RECOMMENDED STUDY OF DIRECT REPLACEMENT ALTERNATIVE While the FAA Administrator considers our report useful, he states in his May 18, 1982, letter that he is confused over what he perceives as inconsistencies between our April 20, 1982, report and our June 1981 testimony before the Subcommittee on Transpor- tation, Aviation, and Materials, House Committee on Science and Technology. In our testimony we said that direct replacement was our preferred option for replacing only the computers at the 22 en route centers, not all computers in the air traffic control sys- tem. We believed this would solve FAA's identified near term problems of capacity shortfall, reliability, and cutoff of spare parts in the en route system. However, we also said FAA should not take our word on this. We recommended a detailed study of direct replacement as opposed to FAA's earlier plan for one-step en route system replacement. We felt that the capability of pro- cessing the near term en route workload would give FAA additional time to adequately develop its requirements for future years. In contrast, the Administrator has extended this option well beyond what we intended. In the NAS Plan, his approach is a massive replacement of not only the 22 en route computers, but also the 188 terminal facilities and about 716 controller displays. This degree of direct replacement goes well beyond that discussed in our testimony. (See p. 7.) (913678) .<4

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