Best Western Gateway Hotel, Rockville, MD

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GROUP 3
SPECIAL PRA MODELING NEEDS

• Best Western Gateway Hotel, Rockville, MD
• October 25-26, 2000

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GROUP MEMBERS
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STATEMENT OF PROBLEM

• The following risk contributors currently not
  included consistently in NASA risk assessment
  models due to lack of knowledge regarding
  appropriate approaches
• Human Reliability Analysis
• Common Cause Failure
• Software
• Spatial Interactions ( e.g. fire, explosions,
  etc. )

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HUMAN RELIABILITY ANALYSIS
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COMMON CAUSE FAILURE
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SOFTWARE RELIABILITY
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SPATIAL / EXTERNAL EVENTS

• Examples
• Fires
• Explosions
• Toxic Leaks
• Orbital Debris

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RECOMMENDATIONS

• Begin incorporating HRA and CCF (at least at a
  scoping level) in developing Shuttle and ISS
  PRAs
• Draft associated guidelines as part of HQ PRA
  Guidelines development
• Begin Training Sessions

• Now
• End of 1st QTR 2001
• End of 1st QTR 2001