Satellite Acquisition:

Global Positioning System Acquisition Changes After Challenger's Accident

NSIAD-87-209BR: Published: Sep 30, 1987. Publicly Released: Nov 2, 1987.

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In response to a congressional request, GAO reviewed the NAVSTAR Global Positioning System to determine how the Air Force modified its acquisition approach for the system following the space shuttle accident.

GAO found that the Air Force: (1) awarded a contract to build and launch seven medium expendable launch vehicles under its revised launch schedule; (2) reduced from 28 to 8 the number of NAVSTAR satellites it planned to launch from the space shuttle; (3) slowed production on items having limited life parts; (4) stretched out production and reduced funding for the operational satellites; (5) plans to postpone the purchase of replenishment satellites due to delays in launching the original 28 satellites; (6) needs to complete tests on satellite user equipment before it can begin full-rate production; and (7) is evaluating commercially available equipment to determine if it can meet its needs and achieve potential cost savings.

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