Short Title: DCS Last Published:  07/31/18 09:30:03 AM (Central)
Element: Human Health Countermeasures (HHC)
Evidence:  Report
Risk Master Logic Diagram:  Diagram
Point of Contact:  Jason Norcross
Risk Ratings and Dispositions per Design Reference Mission (DRM) Category
DRM CategoriesMission
OperationsLong-Term Health
LxCRisk Disposition *LxCRisk Disposition *
Low Earth Orbit6 months2x2Accepted2x1Accepted
1 year2x2Accepted2x1Accepted
Deep Space Sortie1 month3x3Accepted/Optimize3x1Accepted
Lunar Visit/
1 year3x2Accepted/Optimize3x1Accepted
Deep Space
1 year3x3Accepted/Optimize3x1Accepted
Planetary3 years3x2Accepted/Optimize3x1Accepted
Note: LxC is the likelihood and consequence rating.
Risk Statement
Given that tissue inert gas partial pressure is often greater than ambient pressure during phases of a mission (primarily EVA), there is a possibility of decompression sickness (DCS).
Gaps (7)