Abstract
The U.S. human space transportation history from 1961 through 2007 is reviewed. Past and present U.S. human space programs and human space launch vehicles and spacecraft are briefly discussed. Category and chronological list of U.S. human space missions are presented. The emphasis of the study is on the investigation of mission failures and major anomalies encountered in the U.S. human space transportation history. Failures and major anomalies by part, root cause, element, function, domain, and component are analyzed. Failure outcome, failure mode, time of failure, and mission reliability relevant to flight safety analysis are examined. Findings and failure mitigation strategy are summarized.
