Space Shuttle: Incomplete Data and Funding Approach Increase Cost Risk
for Upgrade Program (Letter Report, 05/26/94, GAO/NSIAD-94-23).

The space shuttle, the only U.S. launch system capable of carrying
people to and from space, has operated for more than a decade and is
likely to be used well into the next century. As the shuttle ages, the
National Aeronautics and Space Administration (NASA) will need to update
and replace various components due to obsolescence or to enhance safety.
This report (1) determines the assumptions that NASA has made about the
length of time the current shuttle fleet will be in operation and (2)
NASA's processes and criteria for selecting needed safety and
obsolescence upgrades.

--------------------------- Indexing Terms -----------------------------

 REPORTNUM:  NSIAD-94-23
     TITLE:  Space Shuttle: Incomplete Data and Funding Approach 
             Increase Cost Risk for Upgrade Program
      DATE:  05/26/94
   SUBJECT:  Aerospace research
             Space exploration
             Funds management
             Cost analysis
             Future budget projections
             Budget cuts
             Mission budgeting
             Research and development costs
             Life cycle costs
             Safety standards
IDENTIFIER:  NASA Space Shuttle Program
             NASA Space Shuttle Safety and Obsolescence Upgrade Program
             Space Shuttle High Pressure Fuel Turbopump
             NASA Assured Shuttle Availability Program
             NASA Multifunction Electronic Display Subsystem
             
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